13539606631 has 2 divisors, whose sum is σ = 13539606632. Its totient is φ = 13539606630.

The previous prime is 13539606617. The next prime is 13539606637. The reversal of 13539606631 is 13660693531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13539606631 - 2¹⁵ = 13539573863 is a prime.

It is a super-2 number, since 2×13539606631² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13539606637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6769803315 + 6769803316.

It is an arithmetic number, because the mean of its divisors is an integer number (6769803316).

Almost surely, 2^13539606631 is an apocalyptic number.

13539606631 is a deficient number, since it is larger than the sum of its proper divisors (1).

13539606631 is an equidigital number, since it uses as much as digits as its factorization.

13539606631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 262440, while the sum is 43.

The spelling of 13539606631 in words is "thirteen billion, five hundred thirty-nine million, six hundred six thousand, six hundred thirty-one".