13960316621 has 2 divisors, whose sum is σ = 13960316622. Its totient is φ = 13960316620.

The previous prime is 13960316597. The next prime is 13960316627. The reversal of 13960316621 is 12661306931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8382318025 + 5577998596 = 91555^2 + 74686^2 .

It is a cyclic number.

It is not a de Polignac number, because 13960316621 - 2¹⁸ = 13960054477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13960316627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6980158310 + 6980158311.

It is an arithmetic number, because the mean of its divisors is an integer number (6980158311).

Almost surely, 2^13960316621 is an apocalyptic number.

It is an amenable number.

13960316621 is a deficient number, since it is larger than the sum of its proper divisors (1).

13960316621 is an equidigital number, since it uses as much as digits as its factorization.

13960316621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 38.

The spelling of 13960316621 in words is "thirteen billion, nine hundred sixty million, three hundred sixteen thousand, six hundred twenty-one".