2676776761 has 4 divisors (see below), whose sum is σ = 2684360052. Its totient is φ = 2669193472.

The previous prime is 2676776749. The next prime is 2676776783. The reversal of 2676776761 is 1676776762.

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 1558275625 + 1118501136 = 39475^2 + 33444^2 .

It is a cyclic number.

It is not a de Polignac number, because 2676776761 - 2¹³ = 2676768569 is a prime.

It is a super-2 number, since 2×2676776761² = 14330267656459302242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2676776261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3791116 + ... + 3791821.

It is an arithmetic number, because the mean of its divisors is an integer number (671090013).

Almost surely, 2^2676776761 is an apocalyptic number.

It is an amenable number.

2676776761 is a deficient number, since it is larger than the sum of its proper divisors (7583291).

2676776761 is an equidigital number, since it uses as much as digits as its factorization.

2676776761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7583290.

The product of its digits is 6223392, while the sum is 55.

The square root of 2676776761 is about 51737.5759095843. The cubic root of 2676776761 is about 1388.4728256009.

Subtracting from 2676776761 its reverse (1676776762), we obtain a palindrome (999999999).

The spelling of 2676776761 in words is "two billion, six hundred seventy-six million, seven hundred seventy-six thousand, seven hundred sixty-one".