23013637218 has 96 divisors (see below), whose sum is σ = 60749986752. Its totient is φ = 6437361600.

The previous prime is 23013637211. The next prime is 23013637219. The reversal of 23013637218 is 81273631032.

23013637218 is a `hidden beast` number, since 2 + 3 + 0 + 1 + 3 + 637 + 2 + 18 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (23013637211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 96073 + ... + 235068.

It is an arithmetic number, because the mean of its divisors is an integer number (632812362).

Almost surely, 2^23013637218 is an apocalyptic number.

23013637218 is an abundant number, since it is smaller than the sum of its proper divisors (37736349534).

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

23013637218 is a wasteful number, since it uses less digits than its factorization.

23013637218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331182 (or 331170 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The spelling of 23013637218 in words is "twenty-three billion, thirteen million, six hundred thirty-seven thousand, two hundred eighteen".