199205038942950 has 48 divisors (see below), whose sum is σ = 494029745943120. Its totient is φ = 53121209377920.

The previous prime is 199205038942909. The next prime is 199205038942951. The reversal of 199205038942950 is 59249830502991.

199205038942950 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199205038942951) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67225216 + ... + 70125884.

It is an arithmetic number, because the mean of its divisors is an integer number (10292286373815).

Almost surely, 2^{199205038942950} is an apocalyptic number.

199205038942950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199205038942950 is an abundant number, since it is smaller than the sum of its proper divisors (294824707000170).

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

199205038942950 is a wasteful number, since it uses less digits than its factorization.

199205038942950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3358521 (or 3358516 counting only the distinct ones).

The product of its (nonzero) digits is 62985600, while the sum is 66.

The spelling of 199205038942950 in words is "one hundred ninety-nine trillion, two hundred five billion, thirty-eight million, nine hundred forty-two thousand, nine hundred fifty".