2568978322 has 8 divisors (see below), whose sum is σ = 3853683900. Its totient is φ = 1284417024.

The previous prime is 2568978299. The next prime is 2568978331. The reversal of 2568978322 is 2238798652.

It can be written as a sum of positive squares in 2 ways, for example, as 1432546801 + 1136431521 = 37849^2 + 33711^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2568978322.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 43954 + ... + 84082.

Almost surely, 2^2568978322 is an apocalyptic number.

2568978322 is a deficient number, since it is larger than the sum of its proper divisors (1284705578).

2568978322 is a wasteful number, since it uses less digits than its factorization.

2568978322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72140.

The product of its digits is 2903040, while the sum is 52.

The square root of 2568978322 is about 50685.0897404750. The cubic root of 2568978322 is about 1369.5781324896.

The spelling of 2568978322 in words is "two billion, five hundred sixty-eight million, nine hundred seventy-eight thousand, three hundred twenty-two".