13698899919 has 12 divisors (see below), whose sum is σ = 19789065816. Its totient is φ = 9131784912.

The previous prime is 13698899887. The next prime is 13698899941. The reversal of 13698899919 is 91999889631.

It is not a de Polignac number, because 13698899919 - 2⁵ = 13698899887 is a prime.

It is a super-2 number, since 2×13698899919² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13698899959) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49149 + ... + 172665.

It is an arithmetic number, because the mean of its divisors is an integer number (1649088818).

Almost surely, 2^13698899919 is an apocalyptic number.

13698899919 is a deficient number, since it is larger than the sum of its proper divisors (6090165897).

13698899919 is a wasteful number, since it uses less digits than its factorization.

13698899919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135846 (or 135843 counting only the distinct ones).

The product of its digits is 68024448, while the sum is 72.

The spelling of 13698899919 in words is "thirteen billion, six hundred ninety-eight million, eight hundred ninety-nine thousand, nine hundred nineteen".