868579940475 has 384 divisors, whose sum is σ = 1851181516800. Its totient is φ = 397864396800.

The previous prime is 868579940461. The next prime is 868579940531. The reversal of 868579940475 is 574049975868.

868579940475 is a `hidden beast` number, since 8 + 6 + 8 + 579 + 9 + 4 + 0 + 47 + 5 = 666.

It is not a de Polignac number, because 868579940475 - 2⁵ = 868579940443 is a prime.

It is a super-2 number, since 2×868579940475² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 3302585194 + ... + 3302585456.

It is an arithmetic number, because the mean of its divisors is an integer number (4820785200).

Almost surely, 2^868579940475 is an apocalyptic number.

868579940475 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

868579940475 is an abundant number, since it is smaller than the sum of its proper divisors (982601576325).

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

868579940475 is a wasteful number, since it uses less digits than its factorization.

868579940475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 432 counting only the distinct ones).

The product of its (nonzero) digits is 609638400, while the sum is 72.

The spelling of 868579940475 in words is "eight hundred sixty-eight billion, five hundred seventy-nine million, nine hundred forty thousand, four hundred seventy-five".