764538647322 has 16 divisors (see below), whose sum is σ = 1554993859680. Its totient is φ = 250526788272.

The previous prime is 764538647293. The next prime is 764538647333. The reversal of 764538647322 is 223746835467.

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 7 ways as a sum of consecutive naturals, for example, 1079856493 + ... + 1079857200.

It is an arithmetic number, because the mean of its divisors is an integer number (97187116230).

Almost surely, 2^764538647322 is an apocalyptic number.

764538647322 is an abundant number, since it is smaller than the sum of its proper divisors (790455212358).

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

764538647322 is a wasteful number, since it uses less digits than its factorization.

764538647322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159713757.

The product of its digits is 40642560, while the sum is 57.

The spelling of 764538647322 in words is "seven hundred sixty-four billion, five hundred thirty-eight million, six hundred forty-seven thousand, three hundred twenty-two".