23518438623318 has 64 divisors (see below), whose sum is σ = 49737161145600. Its totient is φ = 7393187571840.

The previous prime is 23518438623301. The next prime is 23518438623331. The reversal of 23518438623318 is 81332683481532.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 160034653 + ... + 160181543.

It is an arithmetic number, because the mean of its divisors is an integer number (777143142900).

Almost surely, 2^{23518438623318} is an apocalyptic number.

23518438623318 is an abundant number, since it is smaller than the sum of its proper divisors (26218722522282).

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

23518438623318 is a wasteful number, since it uses less digits than its factorization.

23518438623318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153277.

The product of its digits is 19906560, while the sum is 57.

The spelling of 23518438623318 in words is "twenty-three trillion, five hundred eighteen billion, four hundred thirty-eight million, six hundred twenty-three thousand, three hundred eighteen".