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68549894586 = 2328923426799
BaseRepresentation
bin111111110101111001…
…000110000110111010
320112221100201110012200
4333311321012012322
52110342233111321
651254050051030
74644505330035
oct776571060672
9215840643180
1068549894586
11270876a0448
1211351279a76
136605ba4804
1434641c001c
151bb316ed26
hexff5e461ba

68549894586 has 24 divisors (see below), whose sum is σ = 148541764800. Its totient is φ = 22847350536.

The previous prime is 68549894557. The next prime is 68549894641.

68549894586 is a `hidden beast` number, since 6 + 85 + 4 + 98 + 9 + 458 + 6 = 666.

68549894586 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×685498945862 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52786 + ... + 374013.

It is an arithmetic number, because the mean of its divisors is an integer number (6189240200).

Almost surely, 268549894586 is an apocalyptic number.

68549894586 is an abundant number, since it is smaller than the sum of its proper divisors (79991870214).

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

68549894586 is a wasteful number, since it uses less digits than its factorization.

68549894586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435730 (or 435727 counting only the distinct ones).

The product of its digits is 597196800, while the sum is 72.

The spelling of 68549894586 in words is "sixty-eight billion, five hundred forty-nine million, eight hundred ninety-four thousand, five hundred eighty-six".

Divisors: 1 2 3 6 9 18 8923 17846 26769 53538 80307 160614 426799 853598 1280397 2560794 3841191 7682382 3808327477 7616654954 11424982431 22849964862 34274947293 68549894586