2049545889 has 8 divisors (see below), whose sum is σ = 3036364320. Its totient is φ = 1366363908.

The previous prime is 2049545837. The next prime is 2049545899. The reversal of 2049545889 is 9885459402.

It is a happy number.

2049545889 is a `hidden beast` number, since 2 + 0 + 4 + 9 + 54 + 588 + 9 = 666.

It is not a de Polignac number, because 2049545889 - 2¹¹ = 2049543841 is a prime.

It is a super-2 number, since 2×2049545889² = 8401276702233600642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2049545899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37954527 + ... + 37954580.

It is an arithmetic number, because the mean of its divisors is an integer number (379545540).

Almost surely, 2^2049545889 is an apocalyptic number.

It is an amenable number.

2049545889 is a deficient number, since it is larger than the sum of its proper divisors (986818431).

2049545889 is an equidigital number, since it uses as much as digits as its factorization.

2049545889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75909116 (or 75909110 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

The square root of 2049545889 is about 45271.9105958651. The cubic root of 2049545889 is about 1270.2402854089.

The spelling of 2049545889 in words is "two billion, forty-nine million, five hundred forty-five thousand, eight hundred eighty-nine".