768944836 has 18 divisors (see below), whose sum is σ = 1479107630. Its totient is φ = 349520160.

The previous prime is 768944821. The next prime is 768944849. The reversal of 768944836 is 638449867.

768944836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 738208900 + 30735936 = 27170^2 + 5544^2 .

It is a super-2 number, since 2×768944836² = 1182552321622133792, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 793881 + ... + 794848.

Almost surely, 2^768944836 is an apocalyptic number.

It is an amenable number.

768944836 is a deficient number, since it is larger than the sum of its proper divisors (710162794).

768944836 is a wasteful number, since it uses less digits than its factorization.

768944836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588755 (or 1588742 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 55.

The square root of 768944836 is about 27729.8545975272. The cubic root of 768944836 is about 916.1467843185.

It can be divided in two parts, 7689 and 44836, that added together give a palindrome (52525).

The spelling of 768944836 in words is "seven hundred sixty-eight million, nine hundred forty-four thousand, eight hundred thirty-six".