2994773778 has 24 divisors (see below), whose sum is σ = 6501444300. Its totient is φ = 996293664.

The previous prime is 2994773773. The next prime is 2994773779. The reversal of 2994773778 is 8773774992.

2994773778 is a `hidden beast` number, since 2 + 99 + 477 + 3 + 7 + 78 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2588469129 + 406304649 = 50877^2 + 20157^2 .

It is not an unprimeable number, because it can be changed into a prime (2994773773) 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 11 ways as a sum of consecutive naturals, for example, 154273 + ... + 172596.

Almost surely, 2^2994773778 is an apocalyptic number.

2994773778 is an abundant number, since it is smaller than the sum of its proper divisors (3506670522).

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

2994773778 is a wasteful number, since it uses less digits than its factorization.

2994773778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327386 (or 327383 counting only the distinct ones).

The product of its digits is 37340352, while the sum is 63.

The square root of 2994773778 is about 54724.5262930617. The cubic root of 2994773778 is about 1441.4115816801.

The spelling of 2994773778 in words is "two billion, nine hundred ninety-four million, seven hundred seventy-three thousand, seven hundred seventy-eight".