13918593193 has 4 divisors (see below), whose sum is σ = 14024842128. Its totient is φ = 13812344260.

The previous prime is 13918593151. The next prime is 13918593229. The reversal of 13918593193 is 39139581931.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-13918593193 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 13918593193.

It is not an unprimeable number, because it can be changed into a prime (13918593893) 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, 53124271 + ... + 53124532.

It is an arithmetic number, because the mean of its divisors is an integer number (3506210532).

Almost surely, 2^13918593193 is an apocalyptic number.

It is an amenable number.

13918593193 is a deficient number, since it is larger than the sum of its proper divisors (106248935).

13918593193 is a wasteful number, since it uses less digits than its factorization.

13918593193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106248934.

The product of its digits is 787320, while the sum is 52.

The spelling of 13918593193 in words is "thirteen billion, nine hundred eighteen million, five hundred ninety-three thousand, one hundred ninety-three".