5819545978 has 8 divisors (see below), whose sum is σ = 9242808372. Its totient is φ = 2738609856.

The previous prime is 5819545933. The next prime is 5819545993. The reversal of 5819545978 is 8795459185.

It can be written as a sum of positive squares in 2 ways, for example, as 5740638289 + 78907689 = 75767^2 + 8883^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85581525 + ... + 85581592.

Almost surely, 2^5819545978 is an apocalyptic number.

5819545978 is a deficient number, since it is larger than the sum of its proper divisors (3423262394).

5819545978 is a wasteful number, since it uses less digits than its factorization.

5819545978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171163136.

The product of its digits is 18144000, while the sum is 61.

The square root of 5819545978 is about 76285.9487586017. The cubic root of 5819545978 is about 1798.7178088922.

The spelling of 5819545978 in words is "five billion, eight hundred nineteen million, five hundred forty-five thousand, nine hundred seventy-eight".