64004115593 has 6 divisors (see below), whose sum is σ = 70351631322. Its totient is φ = 58185559520.

The previous prime is 64004115587. The next prime is 64004115667. The reversal of 64004115593 is 39551140046.

It can be written as a sum of positive squares in only one way, i.e., 50439320569 + 13564795024 = 224587^2 + 116468^2 .

It is not a de Polignac number, because 64004115593 - 2²⁶ = 63937006729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64004115523) 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 in 5 ways as a sum of consecutive naturals, for example, 264479696 + ... + 264479937.

It is an arithmetic number, because the mean of its divisors is an integer number (11725271887).

Almost surely, 2^64004115593 is an apocalyptic number.

It is an amenable number.

64004115593 is a deficient number, since it is larger than the sum of its proper divisors (6347515729).

64004115593 is a wasteful number, since it uses less digits than its factorization.

64004115593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528959655 (or 528959644 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 64004115593 in words is "sixty-four billion, four million, one hundred fifteen thousand, five hundred ninety-three".