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64466480929770 = 2325739812249761
BaseRepresentation
bin11101010100001110001011…
…01100100001101111101010
322110020221020220020201221100
432222013011230201233222
531422204323104223040
6345035254213422230
716402356331425333
oct1652070554415752
9273227226221840
1064466480929770
11195a5098935637
12729205203a976
1329c821734710a
1411cc2a132b28a
1576bdc3b3eb30
hex3aa1c5b21bea

64466480929770 has 48 divisors (see below), whose sum is σ = 169908916878792. Its totient is φ = 16955567585280.

The previous prime is 64466480929679. The next prime is 64466480929771. The reversal of 64466480929770 is 7792908466446.

64466480929770 is a `hidden beast` number, since 6 + 4 + 466 + 4 + 8 + 0 + 9 + 2 + 97 + 70 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 41885062465689 + 22581418464081 = 6471867^2 + 4751991^2 .

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (64466480929771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4906118311 + ... + 4906131450.

Almost surely, 264466480929770 is an apocalyptic number.

64466480929770 is an abundant number, since it is smaller than the sum of its proper divisors (105442435949022).

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

64466480929770 is a wasteful number, since it uses less digits than its factorization.

64466480929770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9812249847 (or 9812249844 counting only the distinct ones).

The product of its (nonzero) digits is 877879296, while the sum is 72.

The spelling of 64466480929770 in words is "sixty-four trillion, four hundred sixty-six billion, four hundred eighty million, nine hundred twenty-nine thousand, seven hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 73 90 146 219 365 438 657 730 1095 1314 2190 3285 6570 9812249761 19624499522 29436749283 49061248805 58873498566 88310247849 98122497610 147183746415 176620495698 294367492830 441551239245 716294232553 883102478490 1432588465106 2148882697659 3581471162765 4297765395318 6446648092977 7162942325530 10744413488295 12893296185954 21488826976590 32233240464885 64466480929770