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479129764864 = 2109722232
BaseRepresentation
bin1101111100011100101…
…11000000010000000000
31200210201101011220210211
412332032113000100000
530322224204433424
61004035325403504
746421165542642
oct6761627002000
91623641156724
10479129764864
1117521a296993
1278a37709594
133624939b70a
141929352c892
15c6e37b9b94
hex6f8e5c0400

479129764864 has 99 divisors (see below), whose sum is σ = 972126791037. Its totient is φ = 236031934464.

The previous prime is 479129764847. The next prime is 479129764873. The reversal of 479129764864 is 468467921974.

The square root of 479129764864 is 692192.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 215147545600 + 263982219264 = 463840^2 + 513792^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 479129764864.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2148563857 + ... + 2148564079.

Almost surely, 2479129764864 is an apocalyptic number.

479129764864 is the 692192-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 479129764864

479129764864 is an abundant number, since it is smaller than the sum of its proper divisors (492997026173).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

479129764864 is an frugal number, since it uses more digits than its factorization.

479129764864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660 (or 322 counting only the distinct ones).

The product of its digits is 146313216, while the sum is 67.

The spelling of 479129764864 in words is "four hundred seventy-nine billion, one hundred twenty-nine million, seven hundred sixty-four thousand, eight hundred sixty-four".

Divisors: 1 2 4 8 16 32 64 97 128 194 223 256 388 446 512 776 892 1024 1552 1784 3104 3568 6208 7136 9409 12416 14272 18818 21631 24832 28544 37636 43262 49664 49729 57088 75272 86524 99328 99458 114176 150544 173048 198916 228352 301088 346096 397832 602176 692192 795664 1204352 1384384 1591328 2098207 2408704 2768768 3182656 4196414 4817408 4823713 5537536 6365312 8392828 9634816 9647426 11075072 12730624 16785656 19294852 22150144 25461248 33571312 38589704 50922496 67142624 77179408 134285248 154358816 268570496 308717632 467900161 537140992 617435264 935800322 1074281984 1234870528 1871600644 2148563968 2469741056 3743201288 4939482112 7486402576 14972805152 29945610304 59891220608 119782441216 239564882432 479129764864