28056272504 has 32 divisors (see below), whose sum is σ = 56722113840. Its totient is φ = 12933043200.

The previous prime is 28056272477. The next prime is 28056272509. The reversal of 28056272504 is 40527265082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28056272509) 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, 81977 + ... + 250664.

Almost surely, 2^28056272504 is an apocalyptic number.

It is an amenable number.

28056272504 is an abundant number, since it is smaller than the sum of its proper divisors (28665841336).

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

28056272504 is a wasteful number, since it uses less digits than its factorization.

28056272504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333471 (or 333467 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 41.

The spelling of 28056272504 in words is "twenty-eight billion, fifty-six million, two hundred seventy-two thousand, five hundred four".