13881351016 has 32 divisors (see below), whose sum is σ = 28384473600. Its totient is φ = 6325675200.

The previous prime is 13881350983. The next prime is 13881351059. The reversal of 13881351016 is 61015318831.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 836560 + ... + 852991.

It is an arithmetic number, because the mean of its divisors is an integer number (887014800).

Almost surely, 2^13881351016 is an apocalyptic number.

It is an amenable number.

13881351016 is an abundant number, since it is smaller than the sum of its proper divisors (14503122584).

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

13881351016 is a wasteful number, since it uses less digits than its factorization.

13881351016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1689649 (or 1689645 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 37.

Adding to 13881351016 its reverse (61015318831), we get a palindrome (74896669847).

The spelling of 13881351016 in words is "thirteen billion, eight hundred eighty-one million, three hundred fifty-one thousand, sixteen".