4278750978 has 32 divisors (see below), whose sum is σ = 9116508096. Its totient is φ = 1334112768.

The previous prime is 4278750967. The next prime is 4278750997. The reversal of 4278750978 is 8790578724.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112051 + ... + 145302.

It is an arithmetic number, because the mean of its divisors is an integer number (284890878).

Almost surely, 2^4278750978 is an apocalyptic number.

4278750978 is an abundant number, since it is smaller than the sum of its proper divisors (4837757118).

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

4278750978 is a wasteful number, since it uses less digits than its factorization.

4278750978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257538.

The product of its (nonzero) digits is 7902720, while the sum is 57.

The square root of 4278750978 is about 65412.1623094666. The cubic root of 4278750978 is about 1623.4503226078.

The spelling of 4278750978 in words is "four billion, two hundred seventy-eight million, seven hundred fifty thousand, nine hundred seventy-eight".