13930021588 has 96 divisors (see below), whose sum is σ = 29550044160. Its totient is φ = 5619694080.

The previous prime is 13930021579. The next prime is 13930021591. The reversal of 13930021588 is 88512003931.

13930021588 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13930021588.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7444293 + ... + 7446163.

It is an arithmetic number, because the mean of its divisors is an integer number (307812960).

Almost surely, 2^13930021588 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 13930021588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14775022080).

13930021588 is an abundant number, since it is smaller than the sum of its proper divisors (15620022572).

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

13930021588 is a wasteful number, since it uses less digits than its factorization.

13930021588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2137 (or 2135 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 13930021588 in words is "thirteen billion, nine hundred thirty million, twenty-one thousand, five hundred eighty-eight".