188764323912 has 40 divisors (see below), whose sum is σ = 528714890550. Its totient is φ = 62921441088.

The previous prime is 188764323911. The next prime is 188764323973. The reversal of 188764323912 is 219323467881.

It is a happy number.

188764323912 is a `hidden beast` number, since 188 + 76 + 4 + 3 + 2 + 391 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 144207024516 + 44557299396 = 379746^2 + 211086^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (188764323911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 145650837 + ... + 145652132.

Almost surely, 2^188764323912 is an apocalyptic number.

188764323912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

188764323912 is an abundant number, since it is smaller than the sum of its proper divisors (339950566638).

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

188764323912 is a wasteful number, since it uses less digits than its factorization.

188764323912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291302987 (or 291302974 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The spelling of 188764323912 in words is "one hundred eighty-eight billion, seven hundred sixty-four million, three hundred twenty-three thousand, nine hundred twelve".