188720388714 has 96 divisors (see below), whose sum is σ = 447268070592. Its totient is φ = 52731993600.

The previous prime is 188720388713. The next prime is 188720388721. The reversal of 188720388714 is 417883027881.

It is not an unprimeable number, because it can be changed into a prime (188720388713) 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, 9154002 + ... + 9174594.

It is an arithmetic number, because the mean of its divisors is an integer number (4659042402).

Almost surely, 2^188720388714 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 188720388714, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223634035296).

188720388714 is an abundant number, since it is smaller than the sum of its proper divisors (258547681878).

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

188720388714 is a wasteful number, since it uses less digits than its factorization.

188720388714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21604 (or 21593 counting only the distinct ones).

The product of its (nonzero) digits is 4816896, while the sum is 57.

The spelling of 188720388714 in words is "one hundred eighty-eight billion, seven hundred twenty million, three hundred eighty-eight thousand, seven hundred fourteen".