6374842115857 has 2 divisors, whose sum is σ = 6374842115858. Its totient is φ = 6374842115856.

The previous prime is 6374842115821. The next prime is 6374842115869. The reversal of 6374842115857 is 7585112484736.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4819710907456 + 1555131208401 = 2195384^2 + 1247049^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6374842115857 is a prime.

It is a super-2 number, since 2×6374842115857² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6374842115795 and 6374842115804.

It is not a weakly prime, because it can be changed into another prime (6374842115897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3187421057928 + 3187421057929.

It is an arithmetic number, because the mean of its divisors is an integer number (3187421057929).

Almost surely, 2^{6374842115857} is an apocalyptic number.

It is an amenable number.

6374842115857 is a deficient number, since it is larger than the sum of its proper divisors (1).

6374842115857 is an equidigital number, since it uses as much as digits as its factorization.

6374842115857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45158400, while the sum is 61.

The spelling of 6374842115857 in words is "six trillion, three hundred seventy-four billion, eight hundred forty-two million, one hundred fifteen thousand, eight hundred fifty-seven".