56581089871799 has 8 divisors (see below), whose sum is σ = 58344964913760. Its totient is φ = 54835493328000.

The previous prime is 56581089871769. The next prime is 56581089871837. The reversal of 56581089871799 is 99717898018565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56581089871799 - 2¹² = 56581089867703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56581089871739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4569618254 + ... + 4569630635.

It is an arithmetic number, because the mean of its divisors is an integer number (7293120614220).

Almost surely, 2^{56581089871799} is an apocalyptic number.

56581089871799 is a deficient number, since it is larger than the sum of its proper divisors (1763875041961).

56581089871799 is a wasteful number, since it uses less digits than its factorization.

56581089871799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9139249081.

The product of its (nonzero) digits is 2743372800, while the sum is 83.

The spelling of 56581089871799 in words is "fifty-six trillion, five hundred eighty-one billion, eighty-nine million, eight hundred seventy-one thousand, seven hundred ninety-nine".