2271705849 has 48 divisors (see below), whose sum is σ = 3839367168. Its totient is φ = 1267363296.

The previous prime is 2271705833. The next prime is 2271705853. The reversal of 2271705849 is 9485071722.

It is a happy number.

It is not a de Polignac number, because 2271705849 - 2⁴ = 2271705833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2271705809) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1737454 + ... + 1738760.

It is an arithmetic number, because the mean of its divisors is an integer number (79986816).

Almost surely, 2^2271705849 is an apocalyptic number.

It is an amenable number.

2271705849 is a deficient number, since it is larger than the sum of its proper divisors (1567661319).

2271705849 is a wasteful number, since it uses less digits than its factorization.

2271705849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954 (or 1951 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 2271705849 is about 47662.4154759282. The cubic root of 2271705849 is about 1314.5709538244.

The spelling of 2271705849 in words is "two billion, two hundred seventy-one million, seven hundred five thousand, eight hundred forty-nine".