2034778578 has 16 divisors (see below), whose sum is σ = 4650922560. Its totient is φ = 581365296.

The previous prime is 2034778549. The next prime is 2034778631. The reversal of 2034778578 is 8758774302.

It is a happy number.

It is a super-2 number, since 2×2034778578² = 8280647722975404168, 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 2034778578.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24223513 + ... + 24223596.

It is an arithmetic number, because the mean of its divisors is an integer number (290682660).

Almost surely, 2^2034778578 is an apocalyptic number.

2034778578 is an abundant number, since it is smaller than the sum of its proper divisors (2616143982).

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

2034778578 is a wasteful number, since it uses less digits than its factorization.

2034778578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48447121.

The product of its (nonzero) digits is 2634240, while the sum is 51.

The square root of 2034778578 is about 45108.5200156245. The cubic root of 2034778578 is about 1267.1821663388.

The spelling of 2034778578 in words is "two billion, thirty-four million, seven hundred seventy-eight thousand, five hundred seventy-eight".