13508818441 has 2 divisors, whose sum is σ = 13508818442. Its totient is φ = 13508818440.

The previous prime is 13508818399. The next prime is 13508818469. The reversal of 13508818441 is 14481880531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7738896841 + 5769921600 = 87971^2 + 75960^2 .

It is a cyclic number.

It is not a de Polignac number, because 13508818441 - 2²⁷ = 13374600713 is a prime.

It is not a weakly prime, because it can be changed into another prime (13508818471) 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, 6754409220 + 6754409221.

It is an arithmetic number, because the mean of its divisors is an integer number (6754409221).

Almost surely, 2^13508818441 is an apocalyptic number.

It is an amenable number.

13508818441 is a deficient number, since it is larger than the sum of its proper divisors (1).

13508818441 is an equidigital number, since it uses as much as digits as its factorization.

13508818441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122880, while the sum is 43.

The spelling of 13508818441 in words is "thirteen billion, five hundred eight million, eight hundred eighteen thousand, four hundred forty-one".