13889113488 has 60 divisors (see below), whose sum is σ = 38911399020. Its totient is φ = 4624800768.

The previous prime is 13889113481. The next prime is 13889113529. The reversal of 13889113488 is 88431198831.

It can be written as a sum of positive squares in 2 ways, for example, as 4310185104 + 9578928384 = 65652^2 + 97872^2 .

It is a super-2 number, since 2×13889113488² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (13889113481) 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, 86628 + ... + 187836.

It is an arithmetic number, because the mean of its divisors is an integer number (648523317).

Almost surely, 2^13889113488 is an apocalyptic number.

13889113488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13889113488 is an abundant number, since it is smaller than the sum of its proper divisors (25022285532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13889113488 is a wasteful number, since it uses less digits than its factorization.

13889113488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102176 (or 102167 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 54.

The spelling of 13889113488 in words is "thirteen billion, eight hundred eighty-nine million, one hundred thirteen thousand, four hundred eighty-eight".