2011009449889 has 24 divisors (see below), whose sum is σ = 2241898416576. Its totient is φ = 1802186416800.

The previous prime is 2011009449881. The next prime is 2011009449923. The reversal of 2011009449889 is 9889449001102.

It is a happy number.

It is not a de Polignac number, because 2011009449889 - 2³ = 2011009449881 is a prime.

It is a super-2 number, since 2×2011009449889² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011009449881) 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, 87986187 + ... + 88009039.

It is an arithmetic number, because the mean of its divisors is an integer number (93412434024).

Almost surely, 2^{2011009449889} is an apocalyptic number.

It is an amenable number.

2011009449889 is a deficient number, since it is larger than the sum of its proper divisors (230888966687).

2011009449889 is a wasteful number, since it uses less digits than its factorization.

2011009449889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33189 (or 33178 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 55.

The spelling of 2011009449889 in words is "two trillion, eleven billion, nine million, four hundred forty-nine thousand, eight hundred eighty-nine".