13910081720 has 64 divisors (see below), whose sum is σ = 31793277600. Its totient is φ = 5476078080.

The previous prime is 13910081707. The next prime is 13910081743. The reversal of 13910081720 is 2718001931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4986086 + ... + 4988874.

Almost surely, 2^13910081720 is an apocalyptic number.

13910081720 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 13910081720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15896638800).

13910081720 is an abundant number, since it is smaller than the sum of its proper divisors (17883195880).

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

13910081720 is a wasteful number, since it uses less digits than its factorization.

13910081720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4728 (or 4724 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 32.

The spelling of 13910081720 in words is "thirteen billion, nine hundred ten million, eighty-one thousand, seven hundred twenty".