28628572038 has 32 divisors (see below), whose sum is σ = 63791331840. Its totient is φ = 8490742560.

The previous prime is 28628572009. The next prime is 28628572051. The reversal of 28628572038 is 83027582682.

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, 4611433 + ... + 4617636.

It is an arithmetic number, because the mean of its divisors is an integer number (1993479120).

Almost surely, 2^28628572038 is an apocalyptic number.

28628572038 is an abundant number, since it is smaller than the sum of its proper divisors (35162759802).

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

28628572038 is a wasteful number, since it uses less digits than its factorization.

28628572038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9229132.

The product of its (nonzero) digits is 2580480, while the sum is 51.

The spelling of 28628572038 in words is "twenty-eight billion, six hundred twenty-eight million, five hundred seventy-two thousand, thirty-eight".