28514860528 has 40 divisors (see below), whose sum is σ = 68880055680. Its totient is φ = 11109685440.

The previous prime is 28514860519. The next prime is 28514860553. The reversal of 28514860528 is 82506841582.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

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, 11571358 + ... + 11573821.

It is an arithmetic number, because the mean of its divisors is an integer number (1722001392).

Almost surely, 2^28514860528 is an apocalyptic number.

28514860528 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28514860528 is an abundant number, since it is smaller than the sum of its proper divisors (40365195152).

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

28514860528 is a wasteful number, since it uses less digits than its factorization.

28514860528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23145205 (or 23145199 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 49.

The spelling of 28514860528 in words is "twenty-eight billion, five hundred fourteen million, eight hundred sixty thousand, five hundred twenty-eight".