4791978568 has 16 divisors (see below), whose sum is σ = 9676110780. Its totient is φ = 2211682368.

The previous prime is 4791978553. The next prime is 4791978593. The reversal of 4791978568 is 8658791974.

It can be written as a sum of positive squares in 2 ways, for example, as 4763484324 + 28494244 = 69018^2 + 5338^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23038255 + ... + 23038462.

Almost surely, 2^4791978568 is an apocalyptic number.

It is an amenable number.

4791978568 is an abundant number, since it is smaller than the sum of its proper divisors (4884132212).

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

4791978568 is a wasteful number, since it uses less digits than its factorization.

4791978568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46076736 (or 46076732 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 64.

The square root of 4791978568 is about 69224.1183981421. The cubic root of 4791978568 is about 1685.9251486624.

The spelling of 4791978568 in words is "four billion, seven hundred ninety-one million, nine hundred seventy-eight thousand, five hundred sixty-eight".