56817383067631 has 2 divisors, whose sum is σ = 56817383067632. Its totient is φ = 56817383067630.

The previous prime is 56817383067607. The next prime is 56817383067713. The reversal of 56817383067631 is 13676038371865.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56817383067631 - 2¹⁹ = 56817382543343 is a prime.

It is a super-2 number, since 2×56817383067631² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56817383068631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28408691533815 + 28408691533816.

It is an arithmetic number, because the mean of its divisors is an integer number (28408691533816).

Almost surely, 2^{56817383067631} is an apocalyptic number.

56817383067631 is a deficient number, since it is larger than the sum of its proper divisors (1).

56817383067631 is an equidigital number, since it uses as much as digits as its factorization.

56817383067631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 91445760, while the sum is 64.

The spelling of 56817383067631 in words is "fifty-six trillion, eight hundred seventeen billion, three hundred eighty-three million, sixty-seven thousand, six hundred thirty-one".