64813120631359 has 16 divisors (see below), whose sum is σ = 69052518208800. Its totient is φ = 60622234624000.

The previous prime is 64813120631309. The next prime is 64813120631449. The reversal of 64813120631359 is 95313602131846.

It is a cyclic number.

It is not a de Polignac number, because 64813120631359 - 2¹⁷ = 64813120500287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64813120631309) 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, 14998804 + ... + 18830569.

It is an arithmetic number, because the mean of its divisors is an integer number (4315782388050).

Almost surely, 2^{64813120631359} is an apocalyptic number.

64813120631359 is a deficient number, since it is larger than the sum of its proper divisors (4239397577441).

64813120631359 is a wasteful number, since it uses less digits than its factorization.

64813120631359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33830090.

The product of its (nonzero) digits is 2799360, while the sum is 52.

The spelling of 64813120631359 in words is "sixty-four trillion, eight hundred thirteen billion, one hundred twenty million, six hundred thirty-one thousand, three hundred fifty-nine".