1178065578 has 8 divisors (see below), whose sum is σ = 2356131168. Its totient is φ = 392688524.

The previous prime is 1178065561. The next prime is 1178065597. The reversal of 1178065578 is 8755608711.

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

1178065578 is an admirable number.

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, 98172126 + ... + 98172137.

It is an arithmetic number, because the mean of its divisors is an integer number (294516396).

Almost surely, 2^1178065578 is an apocalyptic number.

1178065578 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1178065578 is a wasteful number, since it uses less digits than its factorization.

1178065578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196344268.

The product of its (nonzero) digits is 470400, while the sum is 48.

The square root of 1178065578 is about 34322.9599248083. The cubic root of 1178065578 is about 1056.1440470826.

The spelling of 1178065578 in words is "one billion, one hundred seventy-eight million, sixty-five thousand, five hundred seventy-eight".