764578006965 has 24 divisors (see below), whose sum is σ = 1395019523040. Its totient is φ = 386313097824.

The previous prime is 764578006931. The next prime is 764578006967. The reversal of 764578006965 is 569600875467.

It is not a de Polignac number, because 764578006965 - 2²² = 764573812661 is a prime.

It is a super-2 number, since 2×764578006965² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764578006967) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 447120787 + ... + 447122496.

It is an arithmetic number, because the mean of its divisors is an integer number (58125813460).

Almost surely, 2^764578006965 is an apocalyptic number.

It is an amenable number.

764578006965 is a deficient number, since it is larger than the sum of its proper divisors (630441516075).

764578006965 is a wasteful number, since it uses less digits than its factorization.

764578006965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894243313 (or 894243310 counting only the distinct ones).

The product of its (nonzero) digits is 76204800, while the sum is 63.

The spelling of 764578006965 in words is "seven hundred sixty-four billion, five hundred seventy-eight million, six thousand, nine hundred sixty-five".