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68964837480 = 233357114491847
BaseRepresentation
bin100000000111010011…
…1111110100001101000
320121000021111201212000
41000032213332201220
52112214444244410
651403151451000
74661004306060
oct1001647764150
9217007451760
1068964837480
112727a942160
1211448226a60
136670b48756
1434a33543a0
151bd97d5dc0
hex100e9fe868

68964837480 has 512 divisors, whose sum is σ = 287400960000. Its totient is φ = 14290698240.

The previous prime is 68964837451. The next prime is 68964837493. The reversal of 68964837480 is 8473846986.

68964837480 is a `hidden beast` number, since 6 + 8 + 9 + 6 + 483 + 74 + 80 = 666.

It is a super-2 number, since 2×689648374802 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 37337917 + ... + 37339763.

It is an arithmetic number, because the mean of its divisors is an integer number (561330000).

Almost surely, 268964837480 is an apocalyptic number.

68964837480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68964837480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143700480000).

68964837480 is an abundant number, since it is smaller than the sum of its proper divisors (218436122520).

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

68964837480 is a wasteful number, since it uses less digits than its factorization.

68964837480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2334 (or 2324 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 63.

The spelling of 68964837480 in words is "sixty-eight billion, nine hundred sixty-four million, eight hundred thirty-seven thousand, four hundred eighty".