2778340624 has 20 divisors (see below), whose sum is σ = 5413113360. Its totient is φ = 1381408160.

The previous prime is 2778340541. The next prime is 2778340627. The reversal of 2778340624 is 4260438772.

It is not an unprimeable number, because it can be changed into a prime (2778340627) 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 3 ways as a sum of consecutive naturals, for example, 482182 + ... + 487909.

It is an arithmetic number, because the mean of its divisors is an integer number (270655668).

Almost surely, 2^2778340624 is an apocalyptic number.

It is an amenable number.

2778340624 is a deficient number, since it is larger than the sum of its proper divisors (2634772736).

2778340624 is a wasteful number, since it uses less digits than its factorization.

2778340624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970278 (or 970272 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 43.

The square root of 2778340624 is about 52709.9670271193. The cubic root of 2778340624 is about 1405.8160470021.

The spelling of 2778340624 in words is "two billion, seven hundred seventy-eight million, three hundred forty thousand, six hundred twenty-four".