13608942889 has 2 divisors, whose sum is σ = 13608942890. Its totient is φ = 13608942888.

The previous prime is 13608942847. The next prime is 13608942931. The reversal of 13608942889 is 98824980631.

It is a balanced prime because it is at equal distance from previous prime (13608942847) and next prime (13608942931).

It can be written as a sum of positive squares in only one way, i.e., 12274867264 + 1334075625 = 110792^2 + 36525^2 .

It is a cyclic number.

It is not a de Polignac number, because 13608942889 - 2⁷ = 13608942761 is a prime.

It is not a weakly prime, because it can be changed into another prime (13608942089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6804471444 + 6804471445.

It is an arithmetic number, because the mean of its divisors is an integer number (6804471445).

Almost surely, 2^13608942889 is an apocalyptic number.

It is an amenable number.

13608942889 is a deficient number, since it is larger than the sum of its proper divisors (1).

13608942889 is an equidigital number, since it uses as much as digits as its factorization.

13608942889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5971968, while the sum is 58.

The spelling of 13608942889 in words is "thirteen billion, six hundred eight million, nine hundred forty-two thousand, eight hundred eighty-nine".