199488312750 has 128 divisors (see below), whose sum is σ = 500538729600. Its totient is φ = 52918272000.

The previous prime is 199488312743. The next prime is 199488312781. The reversal of 199488312750 is 57213884991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 173016174 + ... + 173017326.

It is an arithmetic number, because the mean of its divisors is an integer number (3910458825).

Almost surely, 2^199488312750 is an apocalyptic number.

199488312750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 199488312750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250269364800).

199488312750 is an abundant number, since it is smaller than the sum of its proper divisors (301050416850).

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

199488312750 is a wasteful number, since it uses less digits than its factorization.

199488312750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183 (or 2173 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 57.

The spelling of 199488312750 in words is "one hundred ninety-nine billion, four hundred eighty-eight million, three hundred twelve thousand, seven hundred fifty".