2765666875 has 20 divisors (see below), whose sum is σ = 3459673800. Its totient is φ = 2210168000.

The previous prime is 2765666873. The next prime is 2765666899. The reversal of 2765666875 is 5786665672.

It is not a de Polignac number, because 2765666875 - 2¹ = 2765666873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2765666873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 800151 + ... + 803599.

It is an arithmetic number, because the mean of its divisors is an integer number (172983690).

Almost surely, 2^2765666875 is an apocalyptic number.

2765666875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2765666875 is a deficient number, since it is larger than the sum of its proper divisors (694006925).

2765666875 is an equidigital number, since it uses as much as digits as its factorization.

2765666875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4752 (or 4737 counting only the distinct ones).

The product of its digits is 25401600, while the sum is 58.

The square root of 2765666875 is about 52589.6080514012. The cubic root of 2765666875 is about 1403.6751863912.

The spelling of 2765666875 in words is "two billion, seven hundred sixty-five million, six hundred sixty-six thousand, eight hundred seventy-five".