2756979769 has 4 divisors (see below), whose sum is σ = 2824223220. Its totient is φ = 2689736320.

The previous prime is 2756979739. The next prime is 2756979803. The reversal of 2756979769 is 9679796572.

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 332697600 + 2424282169 = 18240^2 + 49237^2 .

It is a cyclic number.

It is not a de Polignac number, because 2756979769 - 2¹¹ = 2756977721 is a prime.

It is a super-2 number, since 2×2756979769² = 15201874893350586722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2756979739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33621664 + ... + 33621745.

It is an arithmetic number, because the mean of its divisors is an integer number (706055805).

Almost surely, 2^2756979769 is an apocalyptic number.

It is an amenable number.

2756979769 is a deficient number, since it is larger than the sum of its proper divisors (67243451).

2756979769 is an equidigital number, since it uses as much as digits as its factorization.

2756979769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67243450.

The product of its digits is 90016920, while the sum is 67.

The square root of 2756979769 is about 52506.9497209655. The cubic root of 2756979769 is about 1402.2039722484.

The spelling of 2756979769 in words is "two billion, seven hundred fifty-six million, nine hundred seventy-nine thousand, seven hundred sixty-nine".