23009373015138 has 24 divisors (see below), whose sum is σ = 51461823518976. Its totient is φ = 7422378391800.

The previous prime is 23009373015091. The next prime is 23009373015149. The reversal of 23009373015138 is 83151037390032.

23009373015138 is a `hidden beast` number, since 2 + 300 + 9 + 3 + 7 + 301 + 5 + 1 + 38 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 23009373015093 and 23009373015102.

It is an unprimeable number.

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, 20617717198 + ... + 20617718313.

It is an arithmetic number, because the mean of its divisors is an integer number (2144242646624).

Almost surely, 2^{23009373015138} is an apocalyptic number.

23009373015138 is an abundant number, since it is smaller than the sum of its proper divisors (28452450503838).

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

23009373015138 is a wasteful number, since it uses less digits than its factorization.

23009373015138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41235435550 (or 41235435547 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The spelling of 23009373015138 in words is "twenty-three trillion, nine billion, three hundred seventy-three million, fifteen thousand, one hundred thirty-eight".