13581025889 has 2 divisors, whose sum is σ = 13581025890. Its totient is φ = 13581025888.

The previous prime is 13581025877. The next prime is 13581025957. The reversal of 13581025889 is 98852018531.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10854097489 + 2726928400 = 104183^2 + 52220^2 .

It is a cyclic number.

It is not a de Polignac number, because 13581025889 - 2²⁸ = 13312590433 is a prime.

It is not a weakly prime, because it can be changed into another prime (13581025189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6790512944 + 6790512945.

It is an arithmetic number, because the mean of its divisors is an integer number (6790512945).

Almost surely, 2^13581025889 is an apocalyptic number.

It is an amenable number.

13581025889 is a deficient number, since it is larger than the sum of its proper divisors (1).

13581025889 is an equidigital number, since it uses as much as digits as its factorization.

13581025889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 691200, while the sum is 50.

The spelling of 13581025889 in words is "thirteen billion, five hundred eighty-one million, twenty-five thousand, eight hundred eighty-nine".