188144313930 has 24 divisors (see below), whose sum is σ = 489175216452. Its totient is φ = 50171817024.

The previous prime is 188144313913. The next prime is 188144313967. The reversal of 188144313930 is 39313441881.

188144313930 is a `hidden beast` number, since 188 + 1 + 4 + 431 + 3 + 9 + 30 = 666.

188144313930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 182625458409 + 5518855521 = 427347^2 + 74289^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1045246099 + ... + 1045246278.

Almost surely, 2^188144313930 is an apocalyptic number.

188144313930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

188144313930 is an abundant number, since it is smaller than the sum of its proper divisors (301030902522).

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

188144313930 is a wasteful number, since it uses less digits than its factorization.

188144313930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090492390 (or 2090492387 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 188144313930 in words is "one hundred eighty-eight billion, one hundred forty-four million, three hundred thirteen thousand, nine hundred thirty".