2768881889 has 2 divisors, whose sum is σ = 2768881890. Its totient is φ = 2768881888.

The previous prime is 2768881883. The next prime is 2768881949. The reversal of 2768881889 is 9881888672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2701920400 + 66961489 = 51980^2 + 8183^2 .

It is a cyclic number.

It is not a de Polignac number, because 2768881889 - 2⁴ = 2768881873 is a prime.

It is not a weakly prime, because it can be changed into another prime (2768881883) 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 as a sum of consecutive naturals, namely, 1384440944 + 1384440945.

It is an arithmetic number, because the mean of its divisors is an integer number (1384440945).

Almost surely, 2^2768881889 is an apocalyptic number.

It is an amenable number.

2768881889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2768881889 is an equidigital number, since it uses as much as digits as its factorization.

2768881889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24772608, while the sum is 65.

The square root of 2768881889 is about 52620.1661817976. The cubic root of 2768881889 is about 1404.2188874254.

The spelling of 2768881889 in words is "two billion, seven hundred sixty-eight million, eight hundred eighty-one thousand, eight hundred eighty-nine".