64907376905 has 16 divisors (see below), whose sum is σ = 90832483200. Its totient is φ = 44507914416.

The previous prime is 64907376901. The next prime is 64907376913. The reversal of 64907376905 is 50967370946.

It is not a de Polignac number, because 64907376905 - 2² = 64907376901 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64907376901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18921719 + ... + 18925148.

It is an arithmetic number, because the mean of its divisors is an integer number (5677030200).

Almost surely, 2^64907376905 is an apocalyptic number.

It is an amenable number.

64907376905 is a deficient number, since it is larger than the sum of its proper divisors (25925106295).

64907376905 is an equidigital number, since it uses as much as digits as its factorization.

64907376905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37846893 (or 37846879 counting only the distinct ones).

The product of its (nonzero) digits is 8573040, while the sum is 56.

The spelling of 64907376905 in words is "sixty-four billion, nine hundred seven million, three hundred seventy-six thousand, nine hundred five".