642112264268 has 12 divisors (see below), whose sum is σ = 1139523173712. Its totient is φ = 316534214640.

The previous prime is 642112264247. The next prime is 642112264331. The reversal of 642112264268 is 862462211246.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1130479055 + ... + 1130479622.

It is an arithmetic number, because the mean of its divisors is an integer number (94960264476).

Almost surely, 2^642112264268 is an apocalyptic number.

It is an amenable number.

642112264268 is a deficient number, since it is larger than the sum of its proper divisors (497410909444).

642112264268 is a wasteful number, since it uses less digits than its factorization.

642112264268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2260958752 (or 2260958750 counting only the distinct ones).

The product of its digits is 442368, while the sum is 44.

The spelling of 642112264268 in words is "six hundred forty-two billion, one hundred twelve million, two hundred sixty-four thousand, two hundred sixty-eight".