57243862717 has 2 divisors, whose sum is σ = 57243862718. Its totient is φ = 57243862716.

The previous prime is 57243862691. The next prime is 57243862723. The reversal of 57243862717 is 71726834275.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45490917796 + 11752944921 = 213286^2 + 108411^2 .

It is a cyclic number.

It is not a de Polignac number, because 57243862717 - 2¹¹ = 57243860669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57243862747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28621931358 + 28621931359.

It is an arithmetic number, because the mean of its divisors is an integer number (28621931359).

Almost surely, 2^57243862717 is an apocalyptic number.

It is an amenable number.

57243862717 is a deficient number, since it is larger than the sum of its proper divisors (1).

57243862717 is an equidigital number, since it uses as much as digits as its factorization.

57243862717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3951360, while the sum is 52.

The spelling of 57243862717 in words is "fifty-seven billion, two hundred forty-three million, eight hundred sixty-two thousand, seven hundred seventeen".