6261936626657 has 2 divisors, whose sum is σ = 6261936626658. Its totient is φ = 6261936626656.

The previous prime is 6261936626653. The next prime is 6261936626677. The reversal of 6261936626657 is 7566266391626.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6259323474496 + 2613152161 = 2501864^2 + 51119^2 .

It is a cyclic number.

It is not a de Polignac number, because 6261936626657 - 2² = 6261936626653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6261936626593 and 6261936626602.

It is not a weakly prime, because it can be changed into another prime (6261936626653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3130968313328 + 3130968313329.

It is an arithmetic number, because the mean of its divisors is an integer number (3130968313329).

Almost surely, 2^{6261936626657} is an apocalyptic number.

It is an amenable number.

6261936626657 is a deficient number, since it is larger than the sum of its proper divisors (1).

6261936626657 is an equidigital number, since it uses as much as digits as its factorization.

6261936626657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 176359680, while the sum is 65.

The spelling of 6261936626657 in words is "six trillion, two hundred sixty-one billion, nine hundred thirty-six million, six hundred twenty-six thousand, six hundred fifty-seven".