188714485820 has 48 divisors (see below), whose sum is σ = 453742947840. Its totient is φ = 64583797824.

The previous prime is 188714485793. The next prime is 188714485831. The reversal of 188714485820 is 28584417881.

It is a happy number.

It is a super-2 number, since 2×188714485820² (a number of 23 digits) contains 22 as substring.

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, 1155560 + ... + 1308719.

It is an arithmetic number, because the mean of its divisors is an integer number (9452978080).

Almost surely, 2^188714485820 is an apocalyptic number.

188714485820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

188714485820 is an abundant number, since it is smaller than the sum of its proper divisors (265028462020).

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

188714485820 is a wasteful number, since it uses less digits than its factorization.

188714485820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2464842 (or 2464840 counting only the distinct ones).

The product of its (nonzero) digits is 4587520, while the sum is 56.

The spelling of 188714485820 in words is "one hundred eighty-eight billion, seven hundred fourteen million, four hundred eighty-five thousand, eight hundred twenty".