23735213938 has 4 divisors (see below), whose sum is σ = 35602820910. Its totient is φ = 11867606968.

The previous prime is 23735213911. The next prime is 23735213947. The reversal of 23735213938 is 83931253732.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14884732009 + 8850481929 = 122003^2 + 94077^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5933803483 + ... + 5933803486.

Almost surely, 2^23735213938 is an apocalyptic number.

23735213938 is a deficient number, since it is larger than the sum of its proper divisors (11867606972).

23735213938 is a wasteful number, since it uses less digits than its factorization.

23735213938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11867606971.

The product of its digits is 816480, while the sum is 46.

The spelling of 23735213938 in words is "twenty-three billion, seven hundred thirty-five million, two hundred thirteen thousand, nine hundred thirty-eight".