2009199786180 has 48 divisors (see below), whose sum is σ = 5639186105280. Its totient is φ = 534507875968.

The previous prime is 2009199786179. The next prime is 2009199786247. The reversal of 2009199786180 is 816879919002.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39935079 + ... + 39985358.

It is an arithmetic number, because the mean of its divisors is an integer number (117483043860).

Almost surely, 2^{2009199786180} is an apocalyptic number.

2009199786180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2009199786180 is an abundant number, since it is smaller than the sum of its proper divisors (3629986319100).

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

2009199786180 is a wasteful number, since it uses less digits than its factorization.

2009199786180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79920868 (or 79920866 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 60.

The spelling of 2009199786180 in words is "two trillion, nine billion, one hundred ninety-nine million, seven hundred eighty-six thousand, one hundred eighty".