13796689661 has 2 divisors, whose sum is σ = 13796689662. Its totient is φ = 13796689660.

The previous prime is 13796689631. The next prime is 13796689681. The reversal of 13796689661 is 16698669731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13774543225 + 22146436 = 117365^2 + 4706^2 .

It is a cyclic number.

It is not a de Polignac number, because 13796689661 - 2¹⁴ = 13796673277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13796689594 and 13796689603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13796689601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6898344830 + 6898344831.

It is an arithmetic number, because the mean of its divisors is an integer number (6898344831).

Almost surely, 2^13796689661 is an apocalyptic number.

It is an amenable number.

13796689661 is a deficient number, since it is larger than the sum of its proper divisors (1).

13796689661 is an equidigital number, since it uses as much as digits as its factorization.

13796689661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17635968, while the sum is 62.

The spelling of 13796689661 in words is "thirteen billion, seven hundred ninety-six million, six hundred eighty-nine thousand, six hundred sixty-one".