188198906832 has 30 divisors (see below), whose sum is σ = 526695552162. Its totient is φ = 62732968896.

The previous prime is 188198906803. The next prime is 188198906873. The reversal of 188198906832 is 238609891881.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 114896593296 + 73302313536 = 338964^2 + 270744^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 188198906832.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 653468283 + ... + 653468570.

Almost surely, 2^188198906832 is an apocalyptic number.

188198906832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

188198906832 is an abundant number, since it is smaller than the sum of its proper divisors (338496645330).

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

188198906832 is a wasteful number, since it uses less digits than its factorization.

188198906832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306936867 (or 1306936858 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 63.

The spelling of 188198906832 in words is "one hundred eighty-eight billion, one hundred ninety-eight million, nine hundred six thousand, eight hundred thirty-two".