556864558739 has 4 divisors (see below), whose sum is σ = 557184413760. Its totient is φ = 556544703720.

The previous prime is 556864558721. The next prime is 556864558741. The reversal of 556864558739 is 937855468655.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 556864558739 - 2⁸ = 556864558483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556864558799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159924899 + ... + 159928380.

It is an arithmetic number, because the mean of its divisors is an integer number (139296103440).

Almost surely, 2^556864558739 is an apocalyptic number.

556864558739 is a deficient number, since it is larger than the sum of its proper divisors (319855021).

556864558739 is a wasteful number, since it uses less digits than its factorization.

556864558739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319855020.

The product of its digits is 1088640000, while the sum is 71.

The spelling of 556864558739 in words is "five hundred fifty-six billion, eight hundred sixty-four million, five hundred fifty-eight thousand, seven hundred thirty-nine".