28557930038 has 32 divisors (see below), whose sum is σ = 46925955072. Its totient is φ = 12926880000.

The previous prime is 28557929989. The next prime is 28557930047. The reversal of 28557930038 is 83003975582.

It is a congruent number.

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, 6325670 + ... + 6330182.

It is an arithmetic number, because the mean of its divisors is an integer number (1466436096).

Almost surely, 2^28557930038 is an apocalyptic number.

28557930038 is a deficient number, since it is larger than the sum of its proper divisors (18368025034).

28557930038 is a wasteful number, since it uses less digits than its factorization.

28557930038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5660.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 28557930038 in words is "twenty-eight billion, five hundred fifty-seven million, nine hundred thirty thousand, thirty-eight".