28802640504 has 32 divisors (see below), whose sum is σ = 78552656640. Its totient is φ = 8728072800.

The previous prime is 28802640481. The next prime is 28802640521. The reversal of 28802640504 is 40504620882.

It is a super-2 number, since 2×28802640504² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54550192 + ... + 54550719.

It is an arithmetic number, because the mean of its divisors is an integer number (2454770520).

Almost surely, 2^28802640504 is an apocalyptic number.

28802640504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28802640504 is an abundant number, since it is smaller than the sum of its proper divisors (49750016136).

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

28802640504 is a wasteful number, since it uses less digits than its factorization.

28802640504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109100931 (or 109100927 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 39.

The spelling of 28802640504 in words is "twenty-eight billion, eight hundred two million, six hundred forty thousand, five hundred four".