4978633818 has 16 divisors (see below), whose sum is σ = 9960704640. Its totient is φ = 1658971776.

The previous prime is 4978633817. The next prime is 4978633837. The reversal of 4978633818 is 8183368794.

It is not an unprimeable number, because it can be changed into a prime (4978633817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124183 + ... + 159306.

It is an arithmetic number, because the mean of its divisors is an integer number (622544040).

Almost surely, 2^4978633818 is an apocalyptic number.

4978633818 is an abundant number, since it is smaller than the sum of its proper divisors (4982070822).

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

4978633818 is a wasteful number, since it uses less digits than its factorization.

4978633818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286421.

The product of its digits is 6967296, while the sum is 57.

The square root of 4978633818 is about 70559.4346490957. The cubic root of 4978633818 is about 1707.5367584749.

The spelling of 4978633818 in words is "four billion, nine hundred seventy-eight million, six hundred thirty-three thousand, eight hundred eighteen".