13531622613497 has 2 divisors, whose sum is σ = 13531622613498. Its totient is φ = 13531622613496.

The previous prime is 13531622613491. The next prime is 13531622613577. The reversal of 13531622613497 is 79431622613531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7779391192336 + 5752231421161 = 2789156^2 + 2398381^2 .

It is a cyclic number.

It is not a de Polignac number, because 13531622613497 - 2⁶ = 13531622613433 is a prime.

It is not a weakly prime, because it can be changed into another prime (13531622613491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765811306748 + 6765811306749.

It is an arithmetic number, because the mean of its divisors is an integer number (6765811306749).

Almost surely, 2^{13531622613497} is an apocalyptic number.

It is an amenable number.

13531622613497 is a deficient number, since it is larger than the sum of its proper divisors (1).

13531622613497 is an equidigital number, since it uses as much as digits as its factorization.

13531622613497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4898880, while the sum is 53.

The spelling of 13531622613497 in words is "thirteen trillion, five hundred thirty-one billion, six hundred twenty-two million, six hundred thirteen thousand, four hundred ninety-seven".