13479142991808 has 448 divisors, whose sum is σ = 42505351160832. Its totient is φ = 3727490088960.

The previous prime is 13479142991779. The next prime is 13479142991819. The reversal of 13479142991808 is 80819924197431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 598237503 + ... + 598260033.

It is an arithmetic number, because the mean of its divisors is an integer number (94878015984).

Almost surely, 2^{13479142991808} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13479142991808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21252675580416).

13479142991808 is an abundant number, since it is smaller than the sum of its proper divisors (29026208169024).

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

13479142991808 is a wasteful number, since it uses less digits than its factorization.

13479142991808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23212 (or 23202 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 66.

The spelling of 13479142991808 in words is "thirteen trillion, four hundred seventy-nine billion, one hundred forty-two million, nine hundred ninety-one thousand, eight hundred eight".