13898980889 has 2 divisors, whose sum is σ = 13898980890. Its totient is φ = 13898980888.

The previous prime is 13898980877. The next prime is 13898980897. The reversal of 13898980889 is 98808989831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13200171664 + 698809225 = 114892^2 + 26435^2 .

It is a cyclic number.

It is not a de Polignac number, because 13898980889 - 2⁸ = 13898980633 is a prime.

It is not a weakly prime, because it can be changed into another prime (13898980189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6949490444 + 6949490445.

It is an arithmetic number, because the mean of its divisors is an integer number (6949490445).

Almost surely, 2^13898980889 is an apocalyptic number.

It is an amenable number.

13898980889 is a deficient number, since it is larger than the sum of its proper divisors (1).

13898980889 is an equidigital number, since it uses as much as digits as its factorization.

13898980889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71663616, while the sum is 71.

The spelling of 13898980889 in words is "thirteen billion, eight hundred ninety-eight million, nine hundred eighty thousand, eight hundred eighty-nine".