23734347138 has 32 divisors (see below), whose sum is σ = 53607640320. Its totient is φ = 7781752080.

The previous prime is 23734347137. The next prime is 23734347149. The reversal of 23734347138 is 83174343732.

23734347138 is a `hidden beast` number, since 237 + 343 + 4 + 71 + 3 + 8 = 666.

23734347138 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 23734347093 and 23734347102.

It is not an unprimeable number, because it can be changed into a prime (23734347137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3599370 + ... + 3605957.

It is an arithmetic number, because the mean of its divisors is an integer number (1675238760).

Almost surely, 2^23734347138 is an apocalyptic number.

23734347138 is an abundant number, since it is smaller than the sum of its proper divisors (29873293182).

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

23734347138 is a wasteful number, since it uses less digits than its factorization.

23734347138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7205399 (or 7205393 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 45.

The spelling of 23734347138 in words is "twenty-three billion, seven hundred thirty-four million, three hundred forty-seven thousand, one hundred thirty-eight".