64309026969 has 12 divisors (see below), whose sum is σ = 101335436592. Its totient is φ = 38975167800.

The previous prime is 64309026961. The next prime is 64309026979. The reversal of 64309026969 is 96962090346.

64309026969 is a `hidden beast` number, since 6 + 430 + 90 + 2 + 69 + 69 = 666.

It is not a de Polignac number, because 64309026969 - 2³ = 64309026961 is a prime.

It is a super-2 number, since 2×64309026969² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64309026961) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 324792967 + ... + 324793164.

It is an arithmetic number, because the mean of its divisors is an integer number (8444619716).

Almost surely, 2^64309026969 is an apocalyptic number.

It is an amenable number.

64309026969 is a deficient number, since it is larger than the sum of its proper divisors (37026409623).

64309026969 is a wasteful number, since it uses less digits than its factorization.

64309026969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649586148 (or 649586145 counting only the distinct ones).

The product of its (nonzero) digits is 3779136, while the sum is 54.

The spelling of 64309026969 in words is "sixty-four billion, three hundred nine million, twenty-six thousand, nine hundred sixty-nine".