578330778 has 16 divisors (see below), whose sum is σ = 1217538720. Its totient is φ = 182630736.

The previous prime is 578330777. The next prime is 578330839. The reversal of 578330778 is 877033875.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (578330771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2536425 + ... + 2536652.

It is an arithmetic number, because the mean of its divisors is an integer number (76096170).

Almost surely, 2^578330778 is an apocalyptic number.

578330778 is an abundant number, since it is smaller than the sum of its proper divisors (639207942).

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

578330778 is a wasteful number, since it uses less digits than its factorization.

578330778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5073101.

The product of its (nonzero) digits is 987840, while the sum is 48.

The square root of 578330778 is about 24048.5088519018. The cubic root of 578330778 is about 833.1542905307.

The spelling of 578330778 in words is "five hundred seventy-eight million, three hundred thirty thousand, seven hundred seventy-eight".