13425877191 has 4 divisors (see below), whose sum is σ = 17901169592. Its totient is φ = 8950584792.

The previous prime is 13425877189. The next prime is 13425877243. The reversal of 13425877191 is 19177852431.

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

It is not a de Polignac number, because 13425877191 - 2¹ = 13425877189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13425877191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13425877151) 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, 2237646196 + ... + 2237646201.

It is an arithmetic number, because the mean of its divisors is an integer number (4475292398).

Almost surely, 2^13425877191 is an apocalyptic number.

13425877191 is a deficient number, since it is larger than the sum of its proper divisors (4475292401).

13425877191 is an equidigital number, since it uses as much as digits as its factorization.

13425877191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4475292400.

The product of its digits is 423360, while the sum is 48.

The spelling of 13425877191 in words is "thirteen billion, four hundred twenty-five million, eight hundred seventy-seven thousand, one hundred ninety-one".