2766566473 has 4 divisors (see below), whose sum is σ = 3018072528. Its totient is φ = 2515060420.

The previous prime is 2766566441. The next prime is 2766566501. The reversal of 2766566473 is 3746656672.

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 2766566473 - 2⁵ = 2766566441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2766566473.

It is not an unprimeable number, because it can be changed into a prime (2766564473) 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, 125753011 + ... + 125753032.

It is an arithmetic number, because the mean of its divisors is an integer number (754518132).

Almost surely, 2^2766566473 is an apocalyptic number.

It is an amenable number.

2766566473 is a deficient number, since it is larger than the sum of its proper divisors (251506055).

2766566473 is a wasteful number, since it uses less digits than its factorization.

2766566473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251506054.

The product of its digits is 7620480, while the sum is 52.

The square root of 2766566473 is about 52598.1603575638. The cubic root of 2766566473 is about 1403.8273626486.

The spelling of 2766566473 in words is "two billion, seven hundred sixty-six million, five hundred sixty-six thousand, four hundred seventy-three".