28539372032 has 40 divisors (see below), whose sum is σ = 57039206400. Its totient is φ = 14265631744.

The previous prime is 28539371951. The next prime is 28539372151. The reversal of 28539372032 is 23027393582.

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, 2697569 + ... + 2708127.

It is an arithmetic number, because the mean of its divisors is an integer number (1425980160).

Almost surely, 2^28539372032 is an apocalyptic number.

It is an amenable number.

28539372032 is a deficient number, since it is larger than the sum of its proper divisors (28499834368).

28539372032 is an equidigital number, since it uses as much as digits as its factorization.

28539372032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15856 (or 15840 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 28539372032 in words is "twenty-eight billion, five hundred thirty-nine million, three hundred seventy-two thousand, thirty-two".