2768127978 has 64 divisors (see below), whose sum is σ = 6999644160. Its totient is φ = 708859200.

The previous prime is 2768127959. The next prime is 2768127979. The reversal of 2768127978 is 8797218672.

It is not an unprimeable number, because it can be changed into a prime (2768127979) 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 31 ways as a sum of consecutive naturals, for example, 9393 + ... + 74996.

It is an arithmetic number, because the mean of its divisors is an integer number (109369440).

Almost surely, 2^2768127978 is an apocalyptic number.

2768127978 is an abundant number, since it is smaller than the sum of its proper divisors (4231516182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2768127978 is a wasteful number, since it uses less digits than its factorization.

2768127978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84483.

The product of its digits is 4741632, while the sum is 57.

The square root of 2768127978 is about 52613.0019862011. The cubic root of 2768127978 is about 1404.0914289775.

The spelling of 2768127978 in words is "two billion, seven hundred sixty-eight million, one hundred twenty-seven thousand, nine hundred seventy-eight".