2766564047 has 8 divisors (see below), whose sum is σ = 2982421344. Its totient is φ = 2551141728.

The previous prime is 2766564041. The next prime is 2766564083. The reversal of 2766564047 is 7404656672.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2766564047 - 2⁸ = 2766563791 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2766563992 and 2766564010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2766564041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95468 + ... + 121025.

It is an arithmetic number, because the mean of its divisors is an integer number (372802668).

Almost surely, 2^2766564047 is an apocalyptic number.

2766564047 is a deficient number, since it is larger than the sum of its proper divisors (215857297).

2766564047 is a wasteful number, since it uses less digits than its factorization.

2766564047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217489.

The product of its (nonzero) digits is 1693440, while the sum is 47.

The square root of 2766564047 is about 52598.1372959157. The cubic root of 2766564047 is about 1403.8269523101.

The spelling of 2766564047 in words is "two billion, seven hundred sixty-six million, five hundred sixty-four thousand, forty-seven".