64907376913 has 2 divisors, whose sum is σ = 64907376914. Its totient is φ = 64907376912.

The previous prime is 64907376901. The next prime is 64907376923. The reversal of 64907376913 is 31967370946.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54378975249 + 10528401664 = 233193^2 + 102608^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64907376913 is a prime.

It is not a weakly prime, because it can be changed into another prime (64907376923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32453688456 + 32453688457.

It is an arithmetic number, because the mean of its divisors is an integer number (32453688457).

Almost surely, 2^64907376913 is an apocalyptic number.

It is an amenable number.

64907376913 is a deficient number, since it is larger than the sum of its proper divisors (1).

64907376913 is an equidigital number, since it uses as much as digits as its factorization.

64907376913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5143824, while the sum is 55.

The spelling of 64907376913 in words is "sixty-four billion, nine hundred seven million, three hundred seventy-six thousand, nine hundred thirteen".