13891191413 has 4 divisors (see below), whose sum is σ = 15154027008. Its totient is φ = 12628355820.

The previous prime is 13891191397. The next prime is 13891191443. The reversal of 13891191413 is 31419119831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13891191413 - 2⁴ = 13891191397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13891191443) 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, 631417781 + ... + 631417802.

It is an arithmetic number, because the mean of its divisors is an integer number (3788506752).

Almost surely, 2^13891191413 is an apocalyptic number.

It is an amenable number.

13891191413 is a deficient number, since it is larger than the sum of its proper divisors (1262835595).

13891191413 is a wasteful number, since it uses less digits than its factorization.

13891191413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262835594.

The product of its digits is 23328, while the sum is 41.

The spelling of 13891191413 in words is "thirteen billion, eight hundred ninety-one million, one hundred ninety-one thousand, four hundred thirteen".