23506587904 has 36 divisors (see below), whose sum is σ = 46994881500. Its totient is φ = 11734876160.

The previous prime is 23506587901. The next prime is 23506587911. The reversal of 23506587904 is 40978560532.

It can be written as a sum of positive squares in 2 ways, for example, as 16118841600 + 7387746304 = 126960^2 + 85952^2 .

It is a super-2 number, since 2×23506587904² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23506587901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92472 + ... + 235720.

It is an arithmetic number, because the mean of its divisors is an integer number (1305413375).

Almost surely, 2^23506587904 is an apocalyptic number.

It is an amenable number.

23506587904 is a deficient number, since it is larger than the sum of its proper divisors (23488293596).

23506587904 is an equidigital number, since it uses as much as digits as its factorization.

23506587904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143906 (or 143892 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 23506587904 in words is "twenty-three billion, five hundred six million, five hundred eighty-seven thousand, nine hundred four".