56344765613 has 2 divisors, whose sum is σ = 56344765614. Its totient is φ = 56344765612.

The previous prime is 56344765583. The next prime is 56344765619. The reversal of 56344765613 is 31656744365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40287314089 + 16057451524 = 200717^2 + 126718^2 .

It is a cyclic number.

It is not a de Polignac number, because 56344765613 - 2³⁰ = 55271023789 is a prime.

It is a super-2 number, since 2×56344765613² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56344765619) 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 as a sum of consecutive naturals, namely, 28172382806 + 28172382807.

It is an arithmetic number, because the mean of its divisors is an integer number (28172382807).

Almost surely, 2^56344765613 is an apocalyptic number.

It is an amenable number.

56344765613 is a deficient number, since it is larger than the sum of its proper divisors (1).

56344765613 is an equidigital number, since it uses as much as digits as its factorization.

56344765613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5443200, while the sum is 50.

The spelling of 56344765613 in words is "fifty-six billion, three hundred forty-four million, seven hundred sixty-five thousand, six hundred thirteen".