13893336889 has 2 divisors, whose sum is σ = 13893336890. Its totient is φ = 13893336888.

The previous prime is 13893336839. The next prime is 13893336923. The reversal of 13893336889 is 98863339831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12793419664 + 1099917225 = 113108^2 + 33165^2 .

It is an emirp because it is prime and its reverse (98863339831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13893336889 - 2⁷ = 13893336761 is a prime.

It is a super-2 number, since 2×13893336889² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13893336839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6946668444 + 6946668445.

It is an arithmetic number, because the mean of its divisors is an integer number (6946668445).

Almost surely, 2^13893336889 is an apocalyptic number.

It is an amenable number.

13893336889 is a deficient number, since it is larger than the sum of its proper divisors (1).

13893336889 is an equidigital number, since it uses as much as digits as its factorization.

13893336889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20155392, while the sum is 61.

The spelling of 13893336889 in words is "thirteen billion, eight hundred ninety-three million, three hundred thirty-six thousand, eight hundred eighty-nine".