13888918893 has 24 divisors (see below), whose sum is σ = 19740756672. Its totient is φ = 8655649024.

The previous prime is 13888918891. The next prime is 13888918903. The reversal of 13888918893 is 39881988831.

It is not a de Polignac number, because 13888918893 - 2¹ = 13888918891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13888918891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10875571 + ... + 10876847.

It is an arithmetic number, because the mean of its divisors is an integer number (822531528).

Almost surely, 2^13888918893 is an apocalyptic number.

It is an amenable number.

13888918893 is a deficient number, since it is larger than the sum of its proper divisors (5851837779).

13888918893 is an equidigital number, since it uses as much as digits as its factorization.

13888918893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2741 (or 1464 counting only the distinct ones).

The product of its digits is 23887872, while the sum is 66.

The spelling of 13888918893 in words is "thirteen billion, eight hundred eighty-eight million, nine hundred eighteen thousand, eight hundred ninety-three".