64321065937 has 16 divisors (see below), whose sum is σ = 65413732608. Its totient is φ = 63238276800.

The previous prime is 64321065929. The next prime is 64321065943. The reversal of 64321065937 is 73956012346.

It is a cyclic number.

It is not a de Polignac number, because 64321065937 - 2³ = 64321065929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64321065917) 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, 18572068 + ... + 18575530.

It is an arithmetic number, because the mean of its divisors is an integer number (4088358288).

Almost surely, 2^64321065937 is an apocalyptic number.

It is an amenable number.

64321065937 is a deficient number, since it is larger than the sum of its proper divisors (1092666671).

64321065937 is a wasteful number, since it uses less digits than its factorization.

64321065937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4800.

The product of its (nonzero) digits is 816480, while the sum is 46.

The spelling of 64321065937 in words is "sixty-four billion, three hundred twenty-one million, sixty-five thousand, nine hundred thirty-seven".