188851703550 has 48 divisors (see below), whose sum is σ = 470968784640. Its totient is φ = 50079103840.

The previous prime is 188851703527. The next prime is 188851703627. The reversal of 188851703550 is 55307158881.

It is a junction number, because it is equal to n+sod(n) for n = 188851703493 and 188851703502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3489942 + ... + 3543641.

It is an arithmetic number, because the mean of its divisors is an integer number (9811849680).

Almost surely, 2^188851703550 is an apocalyptic number.

188851703550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

188851703550 is an abundant number, since it is smaller than the sum of its proper divisors (282117081090).

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

188851703550 is a wasteful number, since it uses less digits than its factorization.

188851703550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7033777 (or 7033772 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 51.

The spelling of 188851703550 in words is "one hundred eighty-eight billion, eight hundred fifty-one million, seven hundred three thousand, five hundred fifty".