13479451968 has 28 divisors (see below), whose sum is σ = 35664383840. Its totient is φ = 4493150592.

The previous prime is 13479451943. The next prime is 13479451987. The reversal of 13479451968 is 86915497431.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35102548 + ... + 35102931.

Almost surely, 2^13479451968 is an apocalyptic number.

It is an amenable number.

13479451968 is an abundant number, since it is smaller than the sum of its proper divisors (22184931872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13479451968 is an equidigital number, since it uses as much as digits as its factorization.

13479451968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70205494 (or 70205484 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 57.

The spelling of 13479451968 in words is "thirteen billion, four hundred seventy-nine million, four hundred fifty-one thousand, nine hundred sixty-eight".