13953799479 has 4 divisors (see below), whose sum is σ = 18605065976. Its totient is φ = 9302532984.

The previous prime is 13953799439. The next prime is 13953799513. The reversal of 13953799479 is 97499735931.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13953799479 - 2⁷ = 13953799351 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 (13953799439) 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, 2325633244 + ... + 2325633249.

It is an arithmetic number, because the mean of its divisors is an integer number (4651266494).

Almost surely, 2^13953799479 is an apocalyptic number.

13953799479 is a deficient number, since it is larger than the sum of its proper divisors (4651266497).

13953799479 is an equidigital number, since it uses as much as digits as its factorization.

13953799479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4651266496.

The product of its digits is 57868020, while the sum is 66.

The spelling of 13953799479 in words is "thirteen billion, nine hundred fifty-three million, seven hundred ninety-nine thousand, four hundred seventy-nine".