2791444816 has 40 divisors (see below), whose sum is σ = 5508308160. Its totient is φ = 1370017536.

The previous prime is 2791444813. The next prime is 2791444819. The reversal of 2791444816 is 6184441972.

It is an interprime number because it is at equal distance from previous prime (2791444813) and next prime (2791444819).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2791444811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 775116 + ... + 778708.

It is an arithmetic number, because the mean of its divisors is an integer number (137707704).

Almost surely, 2^2791444816 is an apocalyptic number.

It is an amenable number.

2791444816 is a deficient number, since it is larger than the sum of its proper divisors (2716863344).

2791444816 is a wasteful number, since it uses less digits than its factorization.

2791444816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4483 (or 4477 counting only the distinct ones).

The product of its digits is 387072, while the sum is 46.

The square root of 2791444816 is about 52834.1254872265. The cubic root of 2791444816 is about 1408.0227833994.

The spelling of 2791444816 in words is "two billion, seven hundred ninety-one million, four hundred forty-four thousand, eight hundred sixteen".