556789611779 has 8 divisors (see below), whose sum is σ = 559641071088. Its totient is φ = 553938406560.

The previous prime is 556789611767. The next prime is 556789611857. The reversal of 556789611779 is 977116987655.

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 556789611779 - 2¹² = 556789607683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556789611739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5631884 + ... + 5729894.

It is an arithmetic number, because the mean of its divisors is an integer number (69955133886).

Almost surely, 2^556789611779 is an apocalyptic number.

556789611779 is a deficient number, since it is larger than the sum of its proper divisors (2851459309).

556789611779 is a wasteful number, since it uses less digits than its factorization.

556789611779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127045.

The product of its digits is 200037600, while the sum is 71.

The spelling of 556789611779 in words is "five hundred fifty-six billion, seven hundred eighty-nine million, six hundred eleven thousand, seven hundred seventy-nine".