28758231032 has 32 divisors (see below), whose sum is σ = 56845393920. Its totient is φ = 13619197920.

The previous prime is 28758231023. The next prime is 28758231037. The reversal of 28758231032 is 23013285782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28758231037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1221968 + ... + 1245279.

It is an arithmetic number, because the mean of its divisors is an integer number (1776418560).

Almost surely, 2^28758231032 is an apocalyptic number.

It is an amenable number.

28758231032 is a deficient number, since it is larger than the sum of its proper divisors (28087162888).

28758231032 is a wasteful number, since it uses less digits than its factorization.

28758231032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2467331 (or 2467327 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 28758231032 in words is "twenty-eight billion, seven hundred fifty-eight million, two hundred thirty-one thousand, thirty-two".