6786632942657 has 2 divisors, whose sum is σ = 6786632942658. Its totient is φ = 6786632942656.

The previous prime is 6786632942651. The next prime is 6786632942669. The reversal of 6786632942657 is 7562492366876.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6504927826576 + 281705116081 = 2550476^2 + 530759^2 .

It is a cyclic number.

It is not a de Polignac number, because 6786632942657 - 2²² = 6786628748353 is a prime.

It is a super-2 number, since 2×6786632942657² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6786632942651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3393316471328 + 3393316471329.

It is an arithmetic number, because the mean of its divisors is an integer number (3393316471329).

Almost surely, 2^{6786632942657} is an apocalyptic number.

It is an amenable number.

6786632942657 is a deficient number, since it is larger than the sum of its proper divisors (1).

6786632942657 is an equidigital number, since it uses as much as digits as its factorization.

6786632942657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1097349120, while the sum is 71.

The spelling of 6786632942657 in words is "six trillion, seven hundred eighty-six billion, six hundred thirty-two million, nine hundred forty-two thousand, six hundred fifty-seven".