764745312 has 48 divisors (see below), whose sum is σ = 2076686640. Its totient is φ = 246124032.

The previous prime is 764745287. The next prime is 764745313. The reversal of 764745312 is 213547467.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764745313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134563 + ... + 140130.

It is an arithmetic number, because the mean of its divisors is an integer number (43264305).

Almost surely, 2^764745312 is an apocalyptic number.

It is an amenable number.

764745312 is an abundant number, since it is smaller than the sum of its proper divisors (1311941328).

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

764745312 is a wasteful number, since it uses less digits than its factorization.

764745312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274735 (or 274727 counting only the distinct ones).

The product of its digits is 141120, while the sum is 39.

The square root of 764745312 is about 27654.0288565699. The cubic root of 764745312 is about 914.4759207321.

The spelling of 764745312 in words is "seven hundred sixty-four million, seven hundred forty-five thousand, three hundred twelve".