28500732012 has 48 divisors (see below), whose sum is σ = 68668314624. Its totient is φ = 9190920000.

The previous prime is 28500732011. The next prime is 28500732017. The reversal of 28500732012 is 21023700582.

It is not an unprimeable number, because it can be changed into a prime (28500732011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1411387 + ... + 1431437.

It is an arithmetic number, because the mean of its divisors is an integer number (1430589888).

Almost surely, 2^28500732012 is an apocalyptic number.

It is an amenable number.

28500732012 is an abundant number, since it is smaller than the sum of its proper divisors (40167582612).

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

28500732012 is a wasteful number, since it uses less digits than its factorization.

28500732012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23910 (or 23908 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The spelling of 28500732012 in words is "twenty-eight billion, five hundred million, seven hundred thirty-two thousand, twelve".