557457164779 has 2 divisors, whose sum is σ = 557457164780. Its totient is φ = 557457164778.

The previous prime is 557457164743. The next prime is 557457164809. The reversal of 557457164779 is 977461754755.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-557457164779 is a prime.

It is not a weakly prime, because it can be changed into another prime (557457164479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278728582389 + 278728582390.

It is an arithmetic number, because the mean of its divisors is an integer number (278728582390).

Almost surely, 2^557457164779 is an apocalyptic number.

557457164779 is a deficient number, since it is larger than the sum of its proper divisors (1).

557457164779 is an equidigital number, since it uses as much as digits as its factorization.

557457164779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259308000, while the sum is 67.

The spelling of 557457164779 in words is "five hundred fifty-seven billion, four hundred fifty-seven million, one hundred sixty-four thousand, seven hundred seventy-nine".