864034257728 has 28 divisors (see below), whose sum is σ = 1714628381760. Its totient is φ = 432001909632.

The previous prime is 864034257719. The next prime is 864034257763. The reversal of 864034257728 is 827752430468.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1717775 + ... + 2163057.

It is an arithmetic number, because the mean of its divisors is an integer number (61236727920).

Almost surely, 2^864034257728 is an apocalyptic number.

It is an amenable number.

864034257728 is a deficient number, since it is larger than the sum of its proper divisors (850594124032).

864034257728 is a wasteful number, since it uses less digits than its factorization.

864034257728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475614 (or 475604 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 56.

The spelling of 864034257728 in words is "eight hundred sixty-four billion, thirty-four million, two hundred fifty-seven thousand, seven hundred twenty-eight".