764545632 has 48 divisors (see below), whose sum is σ = 2019286080. Its totient is φ = 253279872.

The previous prime is 764545631. The next prime is 764545667. The reversal of 764545632 is 236545467.

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 (764545631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8782 + ... + 40077.

It is an arithmetic number, because the mean of its divisors is an integer number (42068460).

Almost surely, 2^764545632 is an apocalyptic number.

It is an amenable number.

764545632 is an abundant number, since it is smaller than the sum of its proper divisors (1254740448).

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

764545632 is a wasteful number, since it uses less digits than its factorization.

764545632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49035 (or 49027 counting only the distinct ones).

The product of its digits is 604800, while the sum is 42.

The square root of 764545632 is about 27650.4182970168. The cubic root of 764545632 is about 914.3963219235.

The spelling of 764545632 in words is "seven hundred sixty-four million, five hundred forty-five thousand, six hundred thirty-two".