64907376904 has 8 divisors (see below), whose sum is σ = 121701331710. Its totient is φ = 32453688448.

The previous prime is 64907376901. The next prime is 64907376913. The reversal of 64907376904 is 40967370946.

It can be written as a sum of positive squares in only one way, i.e., 48181128004 + 16726248900 = 219502^2 + 129330^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4056711049 + ... + 4056711064.

Almost surely, 2^64907376904 is an apocalyptic number.

It is an amenable number.

64907376904 is a deficient number, since it is larger than the sum of its proper divisors (56793954806).

64907376904 is a wasteful number, since it uses less digits than its factorization.

64907376904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8113422119 (or 8113422115 counting only the distinct ones).

The product of its (nonzero) digits is 6858432, while the sum is 55.

The spelling of 64907376904 in words is "sixty-four billion, nine hundred seven million, three hundred seventy-six thousand, nine hundred four".