13013820479 has 4 divisors (see below), whose sum is σ = 14196895080. Its totient is φ = 11830745880.

The previous prime is 13013820439. The next prime is 13013820487. The reversal of 13013820479 is 97402831031.

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

It is a cyclic number.

It is not a de Polignac number, because 13013820479 - 2⁸ = 13013820223 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 (13013820419) 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, 591537284 + ... + 591537305.

It is an arithmetic number, because the mean of its divisors is an integer number (3549223770).

Almost surely, 2^13013820479 is an apocalyptic number.

13013820479 is a deficient number, since it is larger than the sum of its proper divisors (1183074601).

13013820479 is a wasteful number, since it uses less digits than its factorization.

13013820479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183074600.

The product of its (nonzero) digits is 36288, while the sum is 38.

The spelling of 13013820479 in words is "thirteen billion, thirteen million, eight hundred twenty thousand, four hundred seventy-nine".