57117264949 has 2 divisors, whose sum is σ = 57117264950. Its totient is φ = 57117264948.

The previous prime is 57117264929. The next prime is 57117265013. The reversal of 57117264949 is 94946271175.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53079552100 + 4037712849 = 230390^2 + 63543^2 .

It is a cyclic number.

It is not a de Polignac number, because 57117264949 - 2⁵ = 57117264917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57117264949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57117264929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28558632474 + 28558632475.

It is an arithmetic number, because the mean of its divisors is an integer number (28558632475).

Almost surely, 2^57117264949 is an apocalyptic number.

It is an amenable number.

57117264949 is a deficient number, since it is larger than the sum of its proper divisors (1).

57117264949 is an equidigital number, since it uses as much as digits as its factorization.

57117264949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3810240, while the sum is 55.

The spelling of 57117264949 in words is "fifty-seven billion, one hundred seventeen million, two hundred sixty-four thousand, nine hundred forty-nine".