28626204872 has 16 divisors (see below), whose sum is σ = 53677512240. Its totient is φ = 14312201616.

The previous prime is 28626204847. The next prime is 28626204923. The reversal of 28626204872 is 27840262682.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33623 + ... + 241625.

It is an arithmetic number, because the mean of its divisors is an integer number (3354844515).

Almost surely, 2^28626204872 is an apocalyptic number.

It is an amenable number.

28626204872 is a deficient number, since it is larger than the sum of its proper divisors (25051307368).

28626204872 is a wasteful number, since it uses less digits than its factorization.

28626204872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225212 (or 225208 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 47.

The spelling of 28626204872 in words is "twenty-eight billion, six hundred twenty-six million, two hundred four thousand, eight hundred seventy-two".