5971686578 has 64 divisors (see below), whose sum is σ = 10692259200. Its totient is φ = 2465717760.

The previous prime is 5971686571. The next prime is 5971686601. The reversal of 5971686578 is 8756861795.

It is a super-2 number, since 2×5971686578² = 71322081171730700168, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5971686578.

It is not an unprimeable number, because it can be changed into a prime (5971686571) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 7203068 + ... + 7203896.

It is an arithmetic number, because the mean of its divisors is an integer number (167066550).

Almost surely, 2^5971686578 is an apocalyptic number.

5971686578 is a deficient number, since it is larger than the sum of its proper divisors (4720572622).

5971686578 is a wasteful number, since it uses less digits than its factorization.

5971686578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227.

The product of its digits is 25401600, while the sum is 62.

The square root of 5971686578 is about 77276.6884513046. The cubic root of 5971686578 is about 1814.2578126949.

The spelling of 5971686578 in words is "five billion, nine hundred seventy-one million, six hundred eighty-six thousand, five hundred seventy-eight".