13888806580 has 96 divisors (see below), whose sum is σ = 34309941120. Its totient is φ = 4667904000.

The previous prime is 13888806571. The next prime is 13888806667. The reversal of 13888806580 is 8560888831.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130860 + ... + 211900.

It is an arithmetic number, because the mean of its divisors is an integer number (357395220).

Almost surely, 2^13888806580 is an apocalyptic number.

13888806580 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 13888806580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17154970560).

13888806580 is an abundant number, since it is smaller than the sum of its proper divisors (20421134540).

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

13888806580 is a wasteful number, since it uses less digits than its factorization.

13888806580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81121 (or 81119 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 55.

The spelling of 13888806580 in words is "thirteen billion, eight hundred eighty-eight million, eight hundred six thousand, five hundred eighty".