28591525323 has 6 divisors (see below), whose sum is σ = 41298869924. Its totient is φ = 19061016876.

The previous prime is 28591525301. The next prime is 28591525351. The reversal of 28591525323 is 32352519582.

28591525323 is a `hidden beast` number, since 2 + 8 + 5 + 91 + 525 + 32 + 3 = 666.

It is not a de Polignac number, because 28591525323 - 2²⁴ = 28574748107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28591525723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1588418065 + ... + 1588418082.

Almost surely, 2^28591525323 is an apocalyptic number.

28591525323 is a deficient number, since it is larger than the sum of its proper divisors (12707344601).

28591525323 is a wasteful number, since it uses less digits than its factorization.

28591525323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3176836153 (or 3176836150 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The spelling of 28591525323 in words is "twenty-eight billion, five hundred ninety-one million, five hundred twenty-five thousand, three hundred twenty-three".