188700000420 has 48 divisors (see below), whose sum is σ = 528446032128. Its totient is φ = 50311806720.

The previous prime is 188700000361. The next prime is 188700000421. The reversal of 188700000420 is 24000007881.

188700000420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (188700000421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120085 + ... + 625955.

It is an arithmetic number, because the mean of its divisors is an integer number (11009292336).

Almost surely, 2^188700000420 is an apocalyptic number.

188700000420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

188700000420 is an abundant number, since it is smaller than the sum of its proper divisors (339746031708).

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

188700000420 is a wasteful number, since it uses less digits than its factorization.

188700000420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512100 (or 512098 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The spelling of 188700000420 in words is "one hundred eighty-eight billion, seven hundred million, four hundred twenty", and thus it is an aban number.