2568978323 has 4 divisors (see below), whose sum is σ = 2570572608. Its totient is φ = 2567384040.

The previous prime is 2568978299. The next prime is 2568978331. The reversal of 2568978323 is 3238798652.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2568978323 - 2⁸ = 2568978067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2568978023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 794723 + ... + 797948.

It is an arithmetic number, because the mean of its divisors is an integer number (642643152).

Almost surely, 2^2568978323 is an apocalyptic number.

2568978323 is a deficient number, since it is larger than the sum of its proper divisors (1594285).

2568978323 is a wasteful number, since it uses less digits than its factorization.

2568978323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594284.

The product of its digits is 4354560, while the sum is 53.

The square root of 2568978323 is about 50685.0897503398. The cubic root of 2568978323 is about 1369.5781326673.

The spelling of 2568978323 in words is "two billion, five hundred sixty-eight million, nine hundred seventy-eight thousand, three hundred twenty-three".