23632664438138 has 32 divisors (see below), whose sum is σ = 40788106156800. Its totient is φ = 10059553203840.

The previous prime is 23632664438137. The next prime is 23632664438179. The reversal of 23632664438138 is 83183446623632.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (23632664438137) 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, 27768923 + ... + 28607313.

It is an arithmetic number, because the mean of its divisors is an integer number (1274628317400).

Almost surely, 2^{23632664438138} is an apocalyptic number.

23632664438138 is a deficient number, since it is larger than the sum of its proper divisors (17155441718662).

23632664438138 is a wasteful number, since it uses less digits than its factorization.

23632664438138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852062.

The product of its digits is 71663616, while the sum is 59.

The spelling of 23632664438138 in words is "twenty-three trillion, six hundred thirty-two billion, six hundred sixty-four million, four hundred thirty-eight thousand, one hundred thirty-eight".