13881105786 has 16 divisors (see below), whose sum is σ = 28657767168. Its totient is φ = 4477776000.

The previous prime is 13881105781. The next prime is 13881105839. The reversal of 13881105786 is 68750118831.

It is not an unprimeable number, because it can be changed into a prime (13881105781) 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, 37314615 + ... + 37314986.

It is an arithmetic number, because the mean of its divisors is an integer number (1791110448).

Almost surely, 2^13881105786 is an apocalyptic number.

13881105786 is an abundant number, since it is smaller than the sum of its proper divisors (14776661382).

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

13881105786 is a wasteful number, since it uses less digits than its factorization.

13881105786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74629637.

The product of its (nonzero) digits is 322560, while the sum is 48.

The spelling of 13881105786 in words is "thirteen billion, eight hundred eighty-one million, one hundred five thousand, seven hundred eighty-six".