13681437814 has 12 divisors (see below), whose sum is σ = 22557412332. Its totient is φ = 6218835260.

The previous prime is 13681437773. The next prime is 13681437827. The reversal of 13681437814 is 41873418631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28267192 + ... + 28267675.

It is an arithmetic number, because the mean of its divisors is an integer number (1879784361).

Almost surely, 2^13681437814 is an apocalyptic number.

13681437814 is a deficient number, since it is larger than the sum of its proper divisors (8875974518).

13681437814 is a wasteful number, since it uses less digits than its factorization.

13681437814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56534891 (or 56534880 counting only the distinct ones).

The product of its digits is 387072, while the sum is 46.

The spelling of 13681437814 in words is "thirteen billion, six hundred eighty-one million, four hundred thirty-seven thousand, eight hundred fourteen".