9047778828 has 48 divisors (see below), whose sum is σ = 24385463424. Its totient is φ = 2580471040.

The previous prime is 9047778821. The next prime is 9047778829. The reversal of 9047778828 is 8288777409.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (9047778821) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2013750 + ... + 2018237.

It is an arithmetic number, because the mean of its divisors is an integer number (508030488).

Almost surely, 2^9047778828 is an apocalyptic number.

It is an amenable number.

9047778828 is an abundant number, since it is smaller than the sum of its proper divisors (15337684596).

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

9047778828 is a wasteful number, since it uses less digits than its factorization.

9047778828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4032022 (or 4032020 counting only the distinct ones).

The product of its (nonzero) digits is 12644352, while the sum is 60.

The square root of 9047778828 is about 95119.8130149550. The cubic root of 9047778828 is about 2083.7582162212.

The spelling of 9047778828 in words is "nine billion, forty-seven million, seven hundred seventy-eight thousand, eight hundred twenty-eight".