865294800672 has 48 divisors (see below), whose sum is σ = 2292626905632. Its totient is φ = 285735974400.

The previous prime is 865294800653. The next prime is 865294800701. The reversal of 865294800672 is 276008492568.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42108829 + ... + 42129372.

It is an arithmetic number, because the mean of its divisors is an integer number (47763060534).

Almost surely, 2^865294800672 is an apocalyptic number.

It is an amenable number.

865294800672 is an abundant number, since it is smaller than the sum of its proper divisors (1427332104960).

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

865294800672 is a wasteful number, since it uses less digits than its factorization.

865294800672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84238321 (or 84238313 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 57.

The spelling of 865294800672 in words is "eight hundred sixty-five billion, two hundred ninety-four million, eight hundred thousand, six hundred seventy-two".