56813861894411 has 2 divisors, whose sum is σ = 56813861894412. Its totient is φ = 56813861894410.

The previous prime is 56813861894341. The next prime is 56813861894423. The reversal of 56813861894411 is 11449816831865.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56813861894411 - 2¹⁴ = 56813861878027 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (56813821894411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28406930947205 + 28406930947206.

It is an arithmetic number, because the mean of its divisors is an integer number (28406930947206).

Almost surely, 2^{56813861894411} is an apocalyptic number.

56813861894411 is a deficient number, since it is larger than the sum of its proper divisors (1).

56813861894411 is an equidigital number, since it uses as much as digits as its factorization.

56813861894411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39813120, while the sum is 65.

The spelling of 56813861894411 in words is "fifty-six trillion, eight hundred thirteen billion, eight hundred sixty-one million, eight hundred ninety-four thousand, four hundred eleven".