13648429479 has 4 divisors (see below), whose sum is σ = 18197905976. Its totient is φ = 9098952984.

The previous prime is 13648429433. The next prime is 13648429511. The reversal of 13648429479 is 97492484631.

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

It is not a de Polignac number, because 13648429479 - 2⁷ = 13648429351 is a prime.

It is a super-2 number, since 2×13648429479² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13648429579) 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, 2274738244 + ... + 2274738249.

It is an arithmetic number, because the mean of its divisors is an integer number (4549476494).

Almost surely, 2^13648429479 is an apocalyptic number.

13648429479 is a deficient number, since it is larger than the sum of its proper divisors (4549476497).

13648429479 is an equidigital number, since it uses as much as digits as its factorization.

13648429479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4549476496.

The product of its digits is 10450944, while the sum is 57.

The spelling of 13648429479 in words is "thirteen billion, six hundred forty-eight million, four hundred twenty-nine thousand, four hundred seventy-nine".