28875900628 has 12 divisors (see below), whose sum is σ = 50641971520. Its totient is φ = 14406765912.

The previous prime is 28875900607. The next prime is 28875900653. The reversal of 28875900628 is 82600957882.

It is a happy number.

It is a hoax number, since the sum of its digits (55) 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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7794018 + ... + 7797721.

Almost surely, 2^28875900628 is an apocalyptic number.

It is an amenable number.

28875900628 is a deficient number, since it is larger than the sum of its proper divisors (21766070892).

28875900628 is a wasteful number, since it uses less digits than its factorization.

28875900628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15592206 (or 15592204 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 55.

The spelling of 28875900628 in words is "twenty-eight billion, eight hundred seventy-five million, nine hundred thousand, six hundred twenty-eight".