13881708841 has 24 divisors (see below), whose sum is σ = 18740804544. Its totient is φ = 9984836160.

The previous prime is 13881708839. The next prime is 13881708871. The reversal of 13881708841 is 14880718831.

It is not a de Polignac number, because 13881708841 - 2¹ = 13881708839 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (13881708821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 520366 + ... + 546391.

It is an arithmetic number, because the mean of its divisors is an integer number (780866856).

Almost surely, 2^13881708841 is an apocalyptic number.

13881708841 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13881708841 is a deficient number, since it is larger than the sum of its proper divisors (4859095703).

13881708841 is a wasteful number, since it uses less digits than its factorization.

13881708841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066801 (or 1066788 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 49.

The spelling of 13881708841 in words is "thirteen billion, eight hundred eighty-one million, seven hundred eight thousand, eight hundred forty-one".