64317395579868 has 36 divisors (see below), whose sum is σ = 168186293042040. Its totient is φ = 20699851450656.

The previous prime is 64317395579863. The next prime is 64317395579903. The reversal of 64317395579868 is 86897559371346.

64317395579868 is a `hidden beast` number, since 6 + 4 + 3 + 1 + 7 + 39 + 5 + 579 + 8 + 6 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64317395579863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30803349330 + ... + 30803351417.

It is an arithmetic number, because the mean of its divisors is an integer number (4671841473390).

Almost surely, 2^{64317395579868} is an apocalyptic number.

It is an amenable number.

64317395579868 is an abundant number, since it is smaller than the sum of its proper divisors (103868897462172).

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

64317395579868 is a wasteful number, since it uses less digits than its factorization.

64317395579868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61606700786 (or 61606700781 counting only the distinct ones).

The product of its digits is 8230118400, while the sum is 81.

The spelling of 64317395579868 in words is "sixty-four trillion, three hundred seventeen billion, three hundred ninety-five million, five hundred seventy-nine thousand, eight hundred sixty-eight".