2056239864793 has 4 divisors (see below), whose sum is σ = 2095036843428. Its totient is φ = 2017442886160.

The previous prime is 2056239864751. The next prime is 2056239864827. The reversal of 2056239864793 is 3974689326502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 533910798864 + 1522329065929 = 730692^2 + 1233827^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2056239864793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2056239862793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19398489238 + ... + 19398489343.

It is an arithmetic number, because the mean of its divisors is an integer number (523759210857).

Almost surely, 2^{2056239864793} is an apocalyptic number.

It is an amenable number.

2056239864793 is a deficient number, since it is larger than the sum of its proper divisors (38796978635).

2056239864793 is an equidigital number, since it uses as much as digits as its factorization.

2056239864793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38796978634.

The product of its (nonzero) digits is 117573120, while the sum is 64.

The spelling of 2056239864793 in words is "two trillion, fifty-six billion, two hundred thirty-nine million, eight hundred sixty-four thousand, seven hundred ninety-three".