13631462729 has 2 divisors, whose sum is σ = 13631462730. Its totient is φ = 13631462728.

The previous prime is 13631462701. The next prime is 13631462749. The reversal of 13631462729 is 92726413631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11611140025 + 2020322704 = 107755^2 + 44948^2 .

It is a cyclic number.

It is not a de Polignac number, because 13631462729 - 2²⁸ = 13363027273 is a prime.

It is a super-3 number, since 3×13631462729³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 13631462729.

It is not a weakly prime, because it can be changed into another prime (13631462749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6815731364 + 6815731365.

It is an arithmetic number, because the mean of its divisors is an integer number (6815731365).

Almost surely, 2^13631462729 is an apocalyptic number.

It is an amenable number.

13631462729 is a deficient number, since it is larger than the sum of its proper divisors (1).

13631462729 is an equidigital number, since it uses as much as digits as its factorization.

13631462729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 44.

The spelling of 13631462729 in words is "thirteen billion, six hundred thirty-one million, four hundred sixty-two thousand, seven hundred twenty-nine".