2009091920100 has 36 divisors (see below), whose sum is σ = 5812972623024. Its totient is φ = 535757845280.

The previous prime is 2009091920093. The next prime is 2009091920111. The reversal of 2009091920100 is 10291909002.

It is a super-2 number, since 2×2009091920100² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3348486234 + ... + 3348486833.

Almost surely, 2^{2009091920100} is an apocalyptic number.

2009091920100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2009091920100 is an abundant number, since it is smaller than the sum of its proper divisors (3803880702924).

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

2009091920100 is a wasteful number, since it uses less digits than its factorization.

2009091920100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6696973084 (or 6696973077 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 33.

The spelling of 2009091920100 in words is "two trillion, nine billion, ninety-one million, nine hundred twenty thousand, one hundred".