13891695108 has 24 divisors (see below), whose sum is σ = 32583667200. Its totient is φ = 4606320480.

The previous prime is 13891695079. The next prime is 13891695109. The reversal of 13891695108 is 80159619831.

It is a super-2 number, since 2×13891695108² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13891695109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3028183 + ... + 3032766.

It is an arithmetic number, because the mean of its divisors is an integer number (1357652800).

Almost surely, 2^13891695108 is an apocalyptic number.

It is an amenable number.

13891695108 is an abundant number, since it is smaller than the sum of its proper divisors (18691972092).

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

13891695108 is a wasteful number, since it uses less digits than its factorization.

13891695108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6061147 (or 6061145 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 51.

The spelling of 13891695108 in words is "thirteen billion, eight hundred ninety-one million, six hundred ninety-five thousand, one hundred eight".