2116727578 has 48 divisors (see below), whose sum is σ = 3734640000. Its totient is φ = 897130080.

The previous prime is 2116727539. The next prime is 2116727581. The reversal of 2116727578 is 8757276112.

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 23 ways as a sum of consecutive naturals, for example, 6064948 + ... + 6065296.

It is an arithmetic number, because the mean of its divisors is an integer number (77805000).

Almost surely, 2^2116727578 is an apocalyptic number.

2116727578 is a deficient number, since it is larger than the sum of its proper divisors (1617912422).

2116727578 is a wasteful number, since it uses less digits than its factorization.

2116727578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875 (or 868 counting only the distinct ones).

The product of its digits is 329280, while the sum is 46.

The square root of 2116727578 is about 46007.9077768159. The cubic root of 2116727578 is about 1283.9703335343.

The spelling of 2116727578 in words is "two billion, one hundred sixteen million, seven hundred twenty-seven thousand, five hundred seventy-eight".