768123636 has 48 divisors (see below), whose sum is σ = 2074275840. Its totient is φ = 216684000.

The previous prime is 768123623. The next prime is 768123683. The reversal of 768123636 is 636321867.

768123636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51240 + ... + 64511.

It is an arithmetic number, because the mean of its divisors is an integer number (43214080).

Almost surely, 2^768123636 is an apocalyptic number.

It is an amenable number.

768123636 is an abundant number, since it is smaller than the sum of its proper divisors (1306152204).

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

768123636 is a wasteful number, since it uses less digits than its factorization.

768123636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115844 (or 115842 counting only the distinct ones).

The product of its digits is 217728, while the sum is 42.

The square root of 768123636 is about 27715.0434962675. The cubic root of 768123636 is about 915.8205330344.

The spelling of 768123636 in words is "seven hundred sixty-eight million, one hundred twenty-three thousand, six hundred thirty-six".