23735642136 has 32 divisors (see below), whose sum is σ = 60054039360. Its totient is φ = 7816556192.

The previous prime is 23735642123. The next prime is 23735642167. The reversal of 23735642136 is 63124653732.

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, 5955750 + ... + 5959733.

It is an arithmetic number, because the mean of its divisors is an integer number (1876688730).

Almost surely, 2^23735642136 is an apocalyptic number.

It is an amenable number.

23735642136 is an abundant number, since it is smaller than the sum of its proper divisors (36318397224).

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

23735642136 is a wasteful number, since it uses less digits than its factorization.

23735642136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11915575 (or 11915571 counting only the distinct ones).

The product of its digits is 544320, while the sum is 42.

The spelling of 23735642136 in words is "twenty-three billion, seven hundred thirty-five million, six hundred forty-two thousand, one hundred thirty-six".