23638856511718 has 16 divisors (see below), whose sum is σ = 42656583179520. Its totient is φ = 9597731215176.

The previous prime is 23638856511533. The next prime is 23638856511757. The reversal of 23638856511718 is 81711565883632.

It is a self number, because there is not a number n which added to its sum of digits gives 23638856511718.

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, 44433940546 + ... + 44433941077.

It is an arithmetic number, because the mean of its divisors is an integer number (2666036448720).

Almost surely, 2^{23638856511718} is an apocalyptic number.

23638856511718 is a deficient number, since it is larger than the sum of its proper divisors (19017726667802).

23638856511718 is a wasteful number, since it uses less digits than its factorization.

23638856511718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88867881651.

The product of its digits is 58060800, while the sum is 64.

The spelling of 23638856511718 in words is "twenty-three trillion, six hundred thirty-eight billion, eight hundred fifty-six million, five hundred eleven thousand, seven hundred eighteen".