2049689775 has 48 divisors (see below), whose sum is σ = 3997902848. Its totient is φ = 906768000.

The previous prime is 2049689749. The next prime is 2049689791. The reversal of 2049689775 is 5779869402.

It is not a de Polignac number, because 2049689775 - 2⁷ = 2049689647 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46696 + ... + 79245.

Almost surely, 2^2049689775 is an apocalyptic number.

2049689775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2049689775 is a deficient number, since it is larger than the sum of its proper divisors (1948213073).

2049689775 is a wasteful number, since it uses less digits than its factorization.

2049689775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125992 (or 125987 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 57.

The square root of 2049689775 is about 45273.4996990513. The cubic root of 2049689775 is about 1270.2700099636.

The spelling of 2049689775 in words is "two billion, forty-nine million, six hundred eighty-nine thousand, seven hundred seventy-five".