28620288902 has 32 divisors (see below), whose sum is σ = 47101824000. Its totient is φ = 12988579968.

The previous prime is 28620288857. The next prime is 28620288911. The reversal of 28620288902 is 20988202682.

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, 8402 + ... + 239397.

It is an arithmetic number, because the mean of its divisors is an integer number (1471932000).

Almost surely, 2^28620288902 is an apocalyptic number.

28620288902 is a deficient number, since it is larger than the sum of its proper divisors (18481535098).

28620288902 is a wasteful number, since it uses less digits than its factorization.

28620288902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247940.

The product of its (nonzero) digits is 442368, while the sum is 47.

The spelling of 28620288902 in words is "twenty-eight billion, six hundred twenty million, two hundred eighty-eight thousand, nine hundred two".