56518169458879 has 2 divisors, whose sum is σ = 56518169458880. Its totient is φ = 56518169458878.

The previous prime is 56518169458813. The next prime is 56518169458963. The reversal of 56518169458879 is 97885496181565.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56518169458879 - 2⁹ = 56518169458367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56518169458379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28259084729439 + 28259084729440.

It is an arithmetic number, because the mean of its divisors is an integer number (28259084729440).

Almost surely, 2^{56518169458879} is an apocalyptic number.

56518169458879 is a deficient number, since it is larger than the sum of its proper divisors (1).

56518169458879 is an equidigital number, since it uses as much as digits as its factorization.

56518169458879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472000, while the sum is 82.

The spelling of 56518169458879 in words is "fifty-six trillion, five hundred eighteen billion, one hundred sixty-nine million, four hundred fifty-eight thousand, eight hundred seventy-nine".