4331798778 has 32 divisors (see below), whose sum is σ = 8720441856. Its totient is φ = 1434487088.

The previous prime is 4331798777. The next prime is 4331798803. The reversal of 4331798778 is 8778971334.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4331798773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 681925 + ... + 688247.

It is an arithmetic number, because the mean of its divisors is an integer number (272513808).

Almost surely, 2^4331798778 is an apocalyptic number.

4331798778 is an abundant number, since it is smaller than the sum of its proper divisors (4388643078).

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

4331798778 is a wasteful number, since it uses less digits than its factorization.

4331798778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7058.

The product of its digits is 7112448, while the sum is 57.

The square root of 4331798778 is about 65816.4020438675. The cubic root of 4331798778 is about 1630.1319448562.

The spelling of 4331798778 in words is "four billion, three hundred thirty-one million, seven hundred ninety-eight thousand, seven hundred seventy-eight".