764788080 has 120 divisors (see below), whose sum is σ = 2757961872. Its totient is φ = 174806016.

The previous prime is 764788051. The next prime is 764788097. The reversal of 764788080 is 80887467.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20757 + ... + 44276.

Almost surely, 2^764788080 is an apocalyptic number.

764788080 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

764788080 is an abundant number, since it is smaller than the sum of its proper divisors (1993173792).

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

764788080 is a wasteful number, since it uses less digits than its factorization.

764788080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65063 (or 65050 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 48.

The square root of 764788080 is about 27654.8021146419. The cubic root of 764788080 is about 914.4929676175.

The spelling of 764788080 in words is "seven hundred sixty-four million, seven hundred eighty-eight thousand, eighty".