13889720382 has 16 divisors (see below), whose sum is σ = 27783993600. Its totient is φ = 4629147992.

The previous prime is 13889720363. The next prime is 13889720387. The reversal of 13889720382 is 28302798831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13889720387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149382 + ... + 223817.

It is an arithmetic number, because the mean of its divisors is an integer number (1736499600).

Almost surely, 2^13889720382 is an apocalyptic number.

13889720382 is an abundant number, since it is smaller than the sum of its proper divisors (13894273218).

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

13889720382 is a wasteful number, since it uses less digits than its factorization.

13889720382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379407.

The product of its (nonzero) digits is 1161216, while the sum is 51.

The spelling of 13889720382 in words is "thirteen billion, eight hundred eighty-nine million, seven hundred twenty thousand, three hundred eighty-two".