14794578993 has 4 divisors (see below), whose sum is σ = 19726105328. Its totient is φ = 9863052660.

The previous prime is 14794578989. The next prime is 14794579021. The reversal of 14794578993 is 39987549741.

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, and also an emirpimes, since its reverse is a distinct semiprime: 39987549741 = 3 ⋅13329183247.

It is not a de Polignac number, because 14794578993 - 2² = 14794578989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (14794578923) 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, 2465763163 + ... + 2465763168.

It is an arithmetic number, because the mean of its divisors is an integer number (4931526332).

Almost surely, 2^14794578993 is an apocalyptic number.

It is an amenable number.

14794578993 is a deficient number, since it is larger than the sum of its proper divisors (4931526335).

14794578993 is an equidigital number, since it uses as much as digits as its factorization.

14794578993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4931526334.

The product of its digits is 68584320, while the sum is 66.

The spelling of 14794578993 in words is "fourteen billion, seven hundred ninety-four million, five hundred seventy-eight thousand, nine hundred ninety-three".