64338281593 has 16 divisors (see below), whose sum is σ = 70684922880. Its totient is φ = 58288873104.

The previous prime is 64338281569. The next prime is 64338281603. The reversal of 64338281593 is 39518283346.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64338281593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64338281593.

It is not an unprimeable number, because it can be changed into a prime (64338281393) 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, 2303530 + ... + 2331292.

It is an arithmetic number, because the mean of its divisors is an integer number (4417807680).

Almost surely, 2^64338281593 is an apocalyptic number.

It is an amenable number.

64338281593 is a deficient number, since it is larger than the sum of its proper divisors (6346641287).

64338281593 is a wasteful number, since it uses less digits than its factorization.

64338281593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33108.

The product of its digits is 3732480, while the sum is 52.

The spelling of 64338281593 in words is "sixty-four billion, three hundred thirty-eight million, two hundred eighty-one thousand, five hundred ninety-three".