57645090079 has 2 divisors, whose sum is σ = 57645090080. Its totient is φ = 57645090078.

The previous prime is 57645090073. The next prime is 57645090089. The reversal of 57645090079 is 97009054675.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57645090079 - 2⁷ = 57645089951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57645090073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28822545039 + 28822545040.

It is an arithmetic number, because the mean of its divisors is an integer number (28822545040).

Almost surely, 2^57645090079 is an apocalyptic number.

57645090079 is a deficient number, since it is larger than the sum of its proper divisors (1).

57645090079 is an equidigital number, since it uses as much as digits as its factorization.

57645090079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2381400, while the sum is 52.

The spelling of 57645090079 in words is "fifty-seven billion, six hundred forty-five million, ninety thousand, seventy-nine".