14978135793 has 4 divisors (see below), whose sum is σ = 19970847728. Its totient is φ = 9985423860.

The previous prime is 14978135791. The next prime is 14978135819. The reversal of 14978135793 is 39753187941.

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 not a de Polignac number, because 14978135793 - 2¹ = 14978135791 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14978135791) 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, 2496355963 + ... + 2496355968.

It is an arithmetic number, because the mean of its divisors is an integer number (4992711932).

Almost surely, 2^14978135793 is an apocalyptic number.

It is an amenable number.

14978135793 is a deficient number, since it is larger than the sum of its proper divisors (4992711935).

14978135793 is an equidigital number, since it uses as much as digits as its factorization.

14978135793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4992711934.

The product of its digits is 5715360, while the sum is 57.

The spelling of 14978135793 in words is "fourteen billion, nine hundred seventy-eight million, one hundred thirty-five thousand, seven hundred ninety-three".