646793112504 has 384 divisors, whose sum is σ = 2123144755200. Its totient is φ = 160518758400.

The previous prime is 646793112499. The next prime is 646793112541. The reversal of 646793112504 is 405211397646.

It is a super-2 number, since 2×646793112504² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 57177009 + ... + 57188319.

It is an arithmetic number, because the mean of its divisors is an integer number (5529022800).

Almost surely, 2^646793112504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 646793112504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1061572377600).

646793112504 is an abundant number, since it is smaller than the sum of its proper divisors (1476351642696).

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

646793112504 is a wasteful number, since it uses less digits than its factorization.

646793112504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11475 (or 11460 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 646793112504 in words is "six hundred forty-six billion, seven hundred ninety-three million, one hundred twelve thousand, five hundred four".