64376970984 has 48 divisors (see below), whose sum is σ = 178606848420. Its totient is φ = 20935599360.

The previous prime is 64376970967. The next prime is 64376971019. The reversal of 64376970984 is 48907967346.

It can be written as a sum of positive squares in 2 ways, for example, as 64301802084 + 75168900 = 253578^2 + 8670^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10901007 + ... + 10906910.

Almost surely, 2^64376970984 is an apocalyptic number.

It is an amenable number.

64376970984 is an abundant number, since it is smaller than the sum of its proper divisors (114229877436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64376970984 is a wasteful number, since it uses less digits than its factorization.

64376970984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21807970 (or 21807963 counting only the distinct ones).

The product of its (nonzero) digits is 54867456, while the sum is 63.

The spelling of 64376970984 in words is "sixty-four billion, three hundred seventy-six million, nine hundred seventy thousand, nine hundred eighty-four".