764633640401 has 8 divisors (see below), whose sum is σ = 798041232960. Its totient is φ = 731239602192.

The previous prime is 764633640389. The next prime is 764633640457. The reversal of 764633640401 is 104046336467.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 764633640401 - 2²⁶ = 764566531537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (764633640601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3273215 + ... + 3499028.

It is an arithmetic number, because the mean of its divisors is an integer number (99755154120).

Almost surely, 2^764633640401 is an apocalyptic number.

It is an amenable number.

764633640401 is a deficient number, since it is larger than the sum of its proper divisors (33407592559).

764633640401 is a wasteful number, since it uses less digits than its factorization.

764633640401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6777175.

The product of its (nonzero) digits is 870912, while the sum is 44.

Adding to 764633640401 its reverse (104046336467), we get a palindrome (868679976868).

The spelling of 764633640401 in words is "seven hundred sixty-four billion, six hundred thirty-three million, six hundred forty thousand, four hundred one".