23516315415438 has 16 divisors (see below), whose sum is σ = 47038749386880. Its totient is φ = 7837752045816.

The previous prime is 23516315415421. The next prime is 23516315415457. The reversal of 23516315415438 is 83451451361532.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254889868 + ... + 254982111.

It is an arithmetic number, because the mean of its divisors is an integer number (2939921836680).

Almost surely, 2^{23516315415438} is an apocalyptic number.

23516315415438 is an abundant number, since it is smaller than the sum of its proper divisors (23522433971442).

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

23516315415438 is a wasteful number, since it uses less digits than its factorization.

23516315415438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509879671.

The product of its digits is 5184000, while the sum is 51.

The spelling of 23516315415438 in words is "twenty-three trillion, five hundred sixteen billion, three hundred fifteen million, four hundred fifteen thousand, four hundred thirty-eight".