23528372491 has 12 divisors (see below), whose sum is σ = 26585188848. Its totient is φ = 20774211744.

The previous prime is 23528372471. The next prime is 23528372501. The reversal of 23528372491 is 19427382532.

It is not a de Polignac number, because 23528372491 - 2⁵ = 23528372459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23528372401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3022660 + ... + 3030433.

It is an arithmetic number, because the mean of its divisors is an integer number (2215432404).

Almost surely, 2^23528372491 is an apocalyptic number.

23528372491 is a deficient number, since it is larger than the sum of its proper divisors (3056816357).

23528372491 is a wasteful number, since it uses less digits than its factorization.

23528372491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6053142 (or 6053129 counting only the distinct ones).

The product of its digits is 725760, while the sum is 46.

The spelling of 23528372491 in words is "twenty-three billion, five hundred twenty-eight million, three hundred seventy-two thousand, four hundred ninety-one".