764696397505 has 8 divisors (see below), whose sum is σ = 920056881600. Its totient is φ = 610142981616.

The previous prime is 764696397433. The next prime is 764696397551. The reversal of 764696397505 is 505793696467.

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 764696397505 - 2¹⁵ = 764696364737 is a prime.

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, 201764965 + ... + 201768754.

It is an arithmetic number, because the mean of its divisors is an integer number (115007110200).

Almost surely, 2^764696397505 is an apocalyptic number.

It is an amenable number.

764696397505 is a deficient number, since it is larger than the sum of its proper divisors (155360484095).

764696397505 is a wasteful number, since it uses less digits than its factorization.

764696397505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403534103.

The product of its (nonzero) digits is 257191200, while the sum is 67.

The spelling of 764696397505 in words is "seven hundred sixty-four billion, six hundred ninety-six million, three hundred ninety-seven thousand, five hundred five".