64764705907 has 8 divisors (see below), whose sum is σ = 70677135792. Its totient is φ = 58856397600.

The previous prime is 64764705883. The next prime is 64764705913. The reversal of 64764705907 is 70950746746.

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

It is not a de Polignac number, because 64764705907 - 2¹¹ = 64764703859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64764705977) 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, 997488 + ... + 1060429.

It is an arithmetic number, because the mean of its divisors is an integer number (8834641974).

Almost surely, 2^64764705907 is an apocalyptic number.

64764705907 is a deficient number, since it is larger than the sum of its proper divisors (5912429885).

64764705907 is a wasteful number, since it uses less digits than its factorization.

64764705907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2060789.

The product of its (nonzero) digits is 8890560, while the sum is 55.

The spelling of 64764705907 in words is "sixty-four billion, seven hundred sixty-four million, seven hundred five thousand, nine hundred seven".