2772568109 has 4 divisors (see below), whose sum is σ = 2772798204. Its totient is φ = 2772338016.

The previous prime is 2772568093. The next prime is 2772568153. The reversal of 2772568109 is 9018652772.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 675844009 + 2096724100 = 25997^2 + 45790^2 .

It is a cyclic number.

It is not a de Polignac number, because 2772568109 - 2⁴ = 2772568093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2772568159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95912 + ... + 121425.

It is an arithmetic number, because the mean of its divisors is an integer number (693199551).

Almost surely, 2^2772568109 is an apocalyptic number.

It is an amenable number.

2772568109 is a deficient number, since it is larger than the sum of its proper divisors (230095).

2772568109 is a wasteful number, since it uses less digits than its factorization.

2772568109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230094.

The product of its (nonzero) digits is 423360, while the sum is 47.

The square root of 2772568109 is about 52655.1812170464. The cubic root of 2772568109 is about 1404.8417579072.

The spelling of 2772568109 in words is "two billion, seven hundred seventy-two million, five hundred sixty-eight thousand, one hundred nine".