28725913192 has 64 divisors (see below), whose sum is σ = 57328920000. Its totient is φ = 13455590400.

The previous prime is 28725913091. The next prime is 28725913207. The reversal of 28725913192 is 29131952782.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10254192 + ... + 10256992.

It is an arithmetic number, because the mean of its divisors is an integer number (895764375).

Almost surely, 2^28725913192 is an apocalyptic number.

It is an amenable number.

28725913192 is a deficient number, since it is larger than the sum of its proper divisors (28603006808).

28725913192 is a wasteful number, since it uses less digits than its factorization.

28725913192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3554 (or 3550 counting only the distinct ones).

The product of its digits is 544320, while the sum is 49.

The spelling of 28725913192 in words is "twenty-eight billion, seven hundred twenty-five million, nine hundred thirteen thousand, one hundred ninety-two".