64061625793 has 16 divisors (see below), whose sum is σ = 75717170496. Its totient is φ = 53537379840.

The previous prime is 64061625721. The next prime is 64061625809. The reversal of 64061625793 is 39752616046.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 64061625793 - 2²⁵ = 64028071361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64061625703) 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, 3975396 + ... + 3991477.

It is an arithmetic number, because the mean of its divisors is an integer number (4732323156).

Almost surely, 2^64061625793 is an apocalyptic number.

It is an amenable number.

64061625793 is a deficient number, since it is larger than the sum of its proper divisors (11655544703).

64061625793 is a wasteful number, since it uses less digits than its factorization.

64061625793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7966944.

The product of its (nonzero) digits is 1632960, while the sum is 49.

The spelling of 64061625793 in words is "sixty-four billion, sixty-one million, six hundred twenty-five thousand, seven hundred ninety-three".