28556164038 has 16 divisors (see below), whose sum is σ = 60118240320. Its totient is φ = 9017735976.

The previous prime is 28556164037. The next prime is 28556164067. The reversal of 28556164038 is 83046165582.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28556164037) 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, 125246220 + ... + 125246447.

It is an arithmetic number, because the mean of its divisors is an integer number (3757390020).

Almost surely, 2^28556164038 is an apocalyptic number.

28556164038 is an abundant number, since it is smaller than the sum of its proper divisors (31562076282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28556164038 is a wasteful number, since it uses less digits than its factorization.

28556164038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250492691.

The product of its (nonzero) digits is 1382400, while the sum is 48.

The spelling of 28556164038 in words is "twenty-eight billion, five hundred fifty-six million, one hundred sixty-four thousand, thirty-eight".