13358478798 has 128 divisors (see below), whose sum is σ = 35521689600. Its totient is φ = 3638359296.

The previous prime is 13358478787. The next prime is 13358478803. The reversal of 13358478798 is 89787485331.

It is a Harshad number since it is a multiple of its sum of digits (63).

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, 2718768 + ... + 2723676.

It is an arithmetic number, because the mean of its divisors is an integer number (277513200).

Almost surely, 2^13358478798 is an apocalyptic number.

13358478798 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13358478798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17760844800).

13358478798 is an abundant number, since it is smaller than the sum of its proper divisors (22163210802).

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

13358478798 is a wasteful number, since it uses less digits than its factorization.

13358478798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5263 (or 5257 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 63.

The spelling of 13358478798 in words is "thirteen billion, three hundred fifty-eight million, four hundred seventy-eight thousand, seven hundred ninety-eight".