2776732989 has 16 divisors (see below), whose sum is σ = 3766963200. Its totient is φ = 1818860976.

The previous prime is 2776732967. The next prime is 2776733021. The reversal of 2776732989 is 9892376772.

It is not a de Polignac number, because 2776732989 - 2⁵ = 2776732957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2776732949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 691662 + ... + 695664.

It is an arithmetic number, because the mean of its divisors is an integer number (235435200).

Almost surely, 2^2776732989 is an apocalyptic number.

It is an amenable number.

2776732989 is a deficient number, since it is larger than the sum of its proper divisors (990230211).

2776732989 is a wasteful number, since it uses less digits than its factorization.

2776732989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7984.

The product of its digits is 16003008, while the sum is 60.

The square root of 2776732989 is about 52694.7150006526. The cubic root of 2776732989 is about 1405.5448449387.

The spelling of 2776732989 in words is "two billion, seven hundred seventy-six million, seven hundred thirty-two thousand, nine hundred eighty-nine".