64691676707 has 8 divisors (see below), whose sum is σ = 74042557536. Its totient is φ = 55368099072.

The previous prime is 64691676703. The next prime is 64691676713. The reversal of 64691676707 is 70767619646.

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 64691676707 - 2² = 64691676703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64691676701) 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, 6820718 + ... + 6830195.

It is an arithmetic number, because the mean of its divisors is an integer number (9255319692).

Almost surely, 2^64691676707 is an apocalyptic number.

64691676707 is a deficient number, since it is larger than the sum of its proper divisors (9350880829).

64691676707 is a wasteful number, since it uses less digits than its factorization.

64691676707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13651597.

The product of its (nonzero) digits is 16003008, while the sum is 59.

The spelling of 64691676707 in words is "sixty-four billion, six hundred ninety-one million, six hundred seventy-six thousand, seven hundred seven".