13934812187 has 4 divisors (see below), whose sum is σ = 13937389080. Its totient is φ = 13932235296.

The previous prime is 13934812169. The next prime is 13934812189. The reversal of 13934812187 is 78121843931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13934812187 - 2¹² = 13934808091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13934812189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1280318 + ... + 1291155.

It is an arithmetic number, because the mean of its divisors is an integer number (3484347270).

Almost surely, 2^13934812187 is an apocalyptic number.

13934812187 is a deficient number, since it is larger than the sum of its proper divisors (2576893).

13934812187 is an equidigital number, since it uses as much as digits as its factorization.

13934812187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2576892.

The product of its digits is 290304, while the sum is 47.

The spelling of 13934812187 in words is "thirteen billion, nine hundred thirty-four million, eight hundred twelve thousand, one hundred eighty-seven".