2091798150 has 192 divisors, whose sum is σ = 5990241600. Its totient is φ = 478494720.

The previous prime is 2091798127. The next prime is 2091798157. The reversal of 2091798150 is 518971902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2091798157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2949996 + ... + 2950704.

It is an arithmetic number, because the mean of its divisors is an integer number (31199175).

Almost surely, 2^2091798150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2091798150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2995120800).

2091798150 is an abundant number, since it is smaller than the sum of its proper divisors (3898443450).

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

2091798150 is a wasteful number, since it uses less digits than its factorization.

2091798150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843 (or 838 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 42.

The square root of 2091798150 is about 45736.1798798282. The cubic root of 2091798150 is about 1278.9098281969.

The spelling of 2091798150 in words is "two billion, ninety-one million, seven hundred ninety-eight thousand, one hundred fifty".