14158940917 has 4 divisors (see below), whose sum is σ = 15446117376. Its totient is φ = 12871764460.

The previous prime is 14158940881. The next prime is 14158940927. The reversal of 14158940917 is 71904985141.

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-14158940917 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14158940927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 643588213 + ... + 643588234.

It is an arithmetic number, because the mean of its divisors is an integer number (3861529344).

Almost surely, 2^14158940917 is an apocalyptic number.

It is an amenable number.

14158940917 is a deficient number, since it is larger than the sum of its proper divisors (1287176459).

14158940917 is a wasteful number, since it uses less digits than its factorization.

14158940917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287176458.

The product of its (nonzero) digits is 362880, while the sum is 49.

The spelling of 14158940917 in words is "fourteen billion, one hundred fifty-eight million, nine hundred forty thousand, nine hundred seventeen".