13631462749 has 2 divisors, whose sum is σ = 13631462750. Its totient is φ = 13631462748.

The previous prime is 13631462729. The next prime is 13631462759. The reversal of 13631462749 is 94726413631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8471913849 + 5159548900 = 92043^2 + 71830^2 .

It is a cyclic number.

It is not a de Polignac number, because 13631462749 - 2²¹ = 13629365597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13631462699 and 13631462708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13631462729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6815731374 + 6815731375.

It is an arithmetic number, because the mean of its divisors is an integer number (6815731375).

Almost surely, 2^13631462749 is an apocalyptic number.

It is an amenable number.

13631462749 is a deficient number, since it is larger than the sum of its proper divisors (1).

13631462749 is an equidigital number, since it uses as much as digits as its factorization.

13631462749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 46.

The spelling of 13631462749 in words is "thirteen billion, six hundred thirty-one million, four hundred sixty-two thousand, seven hundred forty-nine".