56874618289 has 2 divisors, whose sum is σ = 56874618290. Its totient is φ = 56874618288.

The previous prime is 56874618217. The next prime is 56874618299. The reversal of 56874618289 is 98281647865.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56826454689 + 48163600 = 238383^2 + 6940^2 .

It is a cyclic number.

It is not a de Polignac number, because 56874618289 - 2¹¹ = 56874616241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56874618289.

It is not a weakly prime, because it can be changed into another prime (56874618299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28437309144 + 28437309145.

It is an arithmetic number, because the mean of its divisors is an integer number (28437309145).

Almost surely, 2^56874618289 is an apocalyptic number.

It is an amenable number.

56874618289 is a deficient number, since it is larger than the sum of its proper divisors (1).

56874618289 is an equidigital number, since it uses as much as digits as its factorization.

56874618289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46448640, while the sum is 64.

The spelling of 56874618289 in words is "fifty-six billion, eight hundred seventy-four million, six hundred eighteen thousand, two hundred eighty-nine".