2049750081 has 12 divisors (see below), whose sum is σ = 2979610452. Its totient is φ = 1357795296.

The previous prime is 2049750007. The next prime is 2049750083. The reversal of 2049750081 is 1800579402.

It can be written as a sum of positive squares in 2 ways, for example, as 1149210000 + 900540081 = 33900^2 + 30009^2 .

It is not a de Polignac number, because 2049750081 - 2¹¹ = 2049748033 is a prime.

It is a super-2 number, since 2×2049750081² = 8402950789119013122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2049750083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 723906 + ... + 726731.

It is an arithmetic number, because the mean of its divisors is an integer number (248300871).

Almost surely, 2^2049750081 is an apocalyptic number.

It is an amenable number.

2049750081 is a deficient number, since it is larger than the sum of its proper divisors (929860371).

2049750081 is a wasteful number, since it uses less digits than its factorization.

2049750081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450800 (or 1450797 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 2049750081 is about 45274.1657129096. The cubic root of 2049750081 is about 1270.2824678085.

The spelling of 2049750081 in words is "two billion, forty-nine million, seven hundred fifty thousand, eighty-one".