556122777839 has 4 divisors (see below), whose sum is σ = 571153123224. Its totient is φ = 541092432456.

The previous prime is 556122777823. The next prime is 556122777887. The reversal of 556122777839 is 938777221655.

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 556122777839 - 2⁴ = 556122777823 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 (556122774839) 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, 7515172637 + ... + 7515172710.

It is an arithmetic number, because the mean of its divisors is an integer number (142788280806).

Almost surely, 2^556122777839 is an apocalyptic number.

556122777839 is a deficient number, since it is larger than the sum of its proper divisors (15030345385).

556122777839 is a wasteful number, since it uses less digits than its factorization.

556122777839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15030345384.

The product of its digits is 44452800, while the sum is 62.

The spelling of 556122777839 in words is "five hundred fifty-six billion, one hundred twenty-two million, seven hundred seventy-seven thousand, eight hundred thirty-nine".