6426862910857 has 2 divisors, whose sum is σ = 6426862910858. Its totient is φ = 6426862910856.

The previous prime is 6426862910851. The next prime is 6426862910879. The reversal of 6426862910857 is 7580192686246.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6249680004096 + 177182906761 = 2499936^2 + 420931^2 .

It is a cyclic number.

It is not a de Polignac number, because 6426862910857 - 2⁷ = 6426862910729 is a prime.

It is a super-2 number, since 2×6426862910857² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6426862910851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3213431455428 + 3213431455429.

It is an arithmetic number, because the mean of its divisors is an integer number (3213431455429).

Almost surely, 2^{6426862910857} is an apocalyptic number.

It is an amenable number.

6426862910857 is a deficient number, since it is larger than the sum of its proper divisors (1).

6426862910857 is an equidigital number, since it uses as much as digits as its factorization.

6426862910857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69672960, while the sum is 64.

The spelling of 6426862910857 in words is "six trillion, four hundred twenty-six billion, eight hundred sixty-two million, nine hundred ten thousand, eight hundred fifty-seven".