2276805761 has 4 divisors (see below), whose sum is σ = 2278785024. Its totient is φ = 2274826500.

The previous prime is 2276805721. The next prime is 2276805779. The reversal of 2276805761 is 1675086722.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1675086722 = 2 ⋅837543361.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2276805761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2276805721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 987905 + ... + 990206.

It is an arithmetic number, because the mean of its divisors is an integer number (569696256).

Almost surely, 2^2276805761 is an apocalyptic number.

It is an amenable number.

2276805761 is a deficient number, since it is larger than the sum of its proper divisors (1979263).

2276805761 is a wasteful number, since it uses less digits than its factorization.

2276805761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979262.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 2276805761 is about 47715.8858348035. The cubic root of 2276805761 is about 1315.5539428157.

The spelling of 2276805761 in words is "two billion, two hundred seventy-six million, eight hundred five thousand, seven hundred sixty-one".