13613185880 has 192 divisors, whose sum is σ = 38035215360. Its totient is φ = 4356882432.

The previous prime is 13613185849. The next prime is 13613185889. The reversal of 13613185880 is 8858131631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13613185889) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4230032 + ... + 4233248.

It is an arithmetic number, because the mean of its divisors is an integer number (198100080).

Almost surely, 2^13613185880 is an apocalyptic number.

13613185880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13613185880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19017607680).

13613185880 is an abundant number, since it is smaller than the sum of its proper divisors (24422029480).

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

13613185880 is a wasteful number, since it uses less digits than its factorization.

13613185880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3386 (or 3375 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 44.

The spelling of 13613185880 in words is "thirteen billion, six hundred thirteen million, one hundred eighty-five thousand, eight hundred eighty".