764137730 has 16 divisors (see below), whose sum is σ = 1375928640. Its totient is φ = 305548272.

The previous prime is 764137723. The next prime is 764137741. The reversal of 764137730 is 37731467.

It is an unprimeable number.

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, 20867 + ... + 44313.

It is an arithmetic number, because the mean of its divisors is an integer number (85995540).

Almost surely, 2^764137730 is an apocalyptic number.

764137730 is a deficient number, since it is larger than the sum of its proper divisors (611790910).

764137730 is a wasteful number, since it uses less digits than its factorization.

764137730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26713.

The product of its (nonzero) digits is 74088, while the sum is 38.

The square root of 764137730 is about 27643.0412581539. The cubic root of 764137730 is about 914.2336761095.

The spelling of 764137730 in words is "seven hundred sixty-four million, one hundred thirty-seven thousand, seven hundred thirty".