764169664 has 112 divisors (see below), whose sum is σ = 1689811200. Its totient is φ = 341231616.

The previous prime is 764169661. The next prime is 764169667. The reversal of 764169664 is 466961467.

It is an interprime number because it is at equal distance from previous prime (764169661) and next prime (764169667).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764169661) 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 15 ways as a sum of consecutive naturals, for example, 2488999 + ... + 2489305.

It is an arithmetic number, because the mean of its divisors is an integer number (15087600).

Almost surely, 2^764169664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 764169664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (844905600).

764169664 is an abundant number, since it is smaller than the sum of its proper divisors (925641536).

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

764169664 is a wasteful number, since it uses less digits than its factorization.

764169664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450 (or 440 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 49.

The square root of 764169664 is about 27643.6188658432. The cubic root of 764169664 is about 914.2464114801.

The spelling of 764169664 in words is "seven hundred sixty-four million, one hundred sixty-nine thousand, six hundred sixty-four".