188948643800 has 48 divisors (see below), whose sum is σ = 502063542960. Its totient is φ = 64782391680.

The previous prime is 188948643773. The next prime is 188948643827. The reversal of 188948643800 is 8346849881.

It is an interprime number because it is at equal distance from previous prime (188948643773) and next prime (188948643827).

It is a self number, because there is not a number n which added to its sum of digits gives 188948643800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67480259 + ... + 67483058.

It is an arithmetic number, because the mean of its divisors is an integer number (10459657145).

Almost surely, 2^188948643800 is an apocalyptic number.

188948643800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

188948643800 is an abundant number, since it is smaller than the sum of its proper divisors (313114899160).

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

188948643800 is a wasteful number, since it uses less digits than its factorization.

188948643800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134963340 (or 134963331 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 59.

The spelling of 188948643800 in words is "one hundred eighty-eight billion, nine hundred forty-eight million, six hundred forty-three thousand, eight hundred".