768223739844 has 72 divisors (see below), whose sum is σ = 2122198539552. Its totient is φ = 232381514880.

The previous prime is 768223739813. The next prime is 768223739909. The reversal of 768223739844 is 448937322867.

768223739844 is a `hidden beast` number, since 7 + 6 + 8 + 2 + 237 + 398 + 4 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1499929 + ... + 1945824.

It is an arithmetic number, because the mean of its divisors is an integer number (29474979716).

Almost surely, 2^768223739844 is an apocalyptic number.

It is an amenable number.

768223739844 is an abundant number, since it is smaller than the sum of its proper divisors (1353974799708).

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

768223739844 is a wasteful number, since it uses less digits than its factorization.

768223739844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3446337 (or 3446332 counting only the distinct ones).

The product of its digits is 97542144, while the sum is 63.

The spelling of 768223739844 in words is "seven hundred sixty-eight billion, two hundred twenty-three million, seven hundred thirty-nine thousand, eight hundred forty-four".