2943778068 has 72 divisors (see below), whose sum is σ = 9277369920. Its totient is φ = 764616960.

The previous prime is 2943778063. The next prime is 2943778109. The reversal of 2943778068 is 8608773492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2943778063) 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 23 ways as a sum of consecutive naturals, for example, 528213 + ... + 533756.

It is an arithmetic number, because the mean of its divisors is an integer number (128852360).

Almost surely, 2^2943778068 is an apocalyptic number.

2943778068 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2943778068 is an abundant number, since it is smaller than the sum of its proper divisors (6333591852).

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

2943778068 is a wasteful number, since it uses less digits than its factorization.

2943778068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061997 (or 1061992 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The square root of 2943778068 is about 54256.5946959446. The cubic root of 2943778068 is about 1433.1831333265.

The spelling of 2943778068 in words is "two billion, nine hundred forty-three million, seven hundred seventy-eight thousand, sixty-eight".