568638978 has 16 divisors (see below), whose sum is σ = 1150057440. Its totient is φ = 187416416.

The previous prime is 568638953. The next prime is 568639003. The reversal of 568638978 is 879836865.

It is an interprime number because it is at equal distance from previous prime (568638953) and next prime (568639003).

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 531900 + ... + 532967.

It is an arithmetic number, because the mean of its divisors is an integer number (71878590).

Almost surely, 2^568638978 is an apocalyptic number.

568638978 is an abundant number, since it is smaller than the sum of its proper divisors (581418462).

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

568638978 is a wasteful number, since it uses less digits than its factorization.

568638978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064961.

The product of its digits is 17418240, while the sum is 60.

The square root of 568638978 is about 23846.1522682382. The cubic root of 568638978 is about 828.4739841438.

The spelling of 568638978 in words is "five hundred sixty-eight million, six hundred thirty-eight thousand, nine hundred seventy-eight".