57147415817 has 2 divisors, whose sum is σ = 57147415818. Its totient is φ = 57147415816.

The previous prime is 57147415811. The next prime is 57147415841. The reversal of 57147415817 is 71851474175.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45598904521 + 11548511296 = 213539^2 + 107464^2 .

It is a cyclic number.

It is not a de Polignac number, because 57147415817 - 2¹⁸ = 57147153673 is a prime.

It is a super-2 number, since 2×57147415817² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57147415811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28573707908 + 28573707909.

It is an arithmetic number, because the mean of its divisors is an integer number (28573707909).

Almost surely, 2^57147415817 is an apocalyptic number.

It is an amenable number.

57147415817 is a deficient number, since it is larger than the sum of its proper divisors (1).

57147415817 is an equidigital number, since it uses as much as digits as its factorization.

57147415817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1097600, while the sum is 50.

It can be divided in two parts, 571474158 and 17, that added together give a palindrome (571474175).

The spelling of 57147415817 in words is "fifty-seven billion, one hundred forty-seven million, four hundred fifteen thousand, eight hundred seventeen".