13434238187 has 4 divisors (see below), whose sum is σ = 13435917360. Its totient is φ = 13432559016.

The previous prime is 13434238177. The next prime is 13434238189. The reversal of 13434238187 is 78183243431.

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 13434238187 - 2⁸ = 13434237931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13434238189) 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, 827528 + ... + 843605.

It is an arithmetic number, because the mean of its divisors is an integer number (3358979340).

Almost surely, 2^13434238187 is an apocalyptic number.

13434238187 is a deficient number, since it is larger than the sum of its proper divisors (1679173).

13434238187 is an equidigital number, since it uses as much as digits as its factorization.

13434238187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1679172.

The product of its digits is 387072, while the sum is 44.

The spelling of 13434238187 in words is "thirteen billion, four hundred thirty-four million, two hundred thirty-eight thousand, one hundred eighty-seven".