5636443747657 has 2 divisors, whose sum is σ = 5636443747658. Its totient is φ = 5636443747656.

The previous prime is 5636443747607. The next prime is 5636443747663. The reversal of 5636443747657 is 7567473446365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4323026897721 + 1313416849936 = 2079189^2 + 1146044^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5636443747657 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5636443747592 and 5636443747601.

It is not a weakly prime, because it can be changed into another prime (5636443747607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2818221873828 + 2818221873829.

It is an arithmetic number, because the mean of its divisors is an integer number (2818221873829).

Almost surely, 2^{5636443747657} is an apocalyptic number.

It is an amenable number.

5636443747657 is a deficient number, since it is larger than the sum of its proper divisors (1).

5636443747657 is an equidigital number, since it uses as much as digits as its factorization.

5636443747657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1066867200, while the sum is 67.

The spelling of 5636443747657 in words is "five trillion, six hundred thirty-six billion, four hundred forty-three million, seven hundred forty-seven thousand, six hundred fifty-seven".