2090771749 has 4 divisors (see below), whose sum is σ = 2280841920. Its totient is φ = 1900701580.

The previous prime is 2090771717. The next prime is 2090771773. The reversal of 2090771749 is 9471770902.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2090771749 - 2⁵ = 2090771717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2090771699 and 2090771708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2090771549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95035069 + ... + 95035090.

It is an arithmetic number, because the mean of its divisors is an integer number (570210480).

Almost surely, 2^2090771749 is an apocalyptic number.

It is an amenable number.

2090771749 is a deficient number, since it is larger than the sum of its proper divisors (190070171).

2090771749 is a wasteful number, since it uses less digits than its factorization.

2090771749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190070170.

The product of its (nonzero) digits is 222264, while the sum is 46.

The square root of 2090771749 is about 45724.9576161641. The cubic root of 2090771749 is about 1278.7006159958.

The spelling of 2090771749 in words is "two billion, ninety million, seven hundred seventy-one thousand, seven hundred forty-nine".