4878731331 has 20 divisors (see below), whose sum is σ = 7311757992. Its totient is φ = 3241876608.

The previous prime is 4878731317. The next prime is 4878731369. The reversal of 4878731331 is 1331378784.

It is not a de Polignac number, because 4878731331 - 2¹⁸ = 4878469187 is a prime.

It is a super-2 number, since 2×4878731331² = 47604038800162063122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4878735331) 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 19 ways as a sum of consecutive naturals, for example, 73230 + ... + 122963.

Almost surely, 2^4878731331 is an apocalyptic number.

4878731331 is a deficient number, since it is larger than the sum of its proper divisors (2433026661).

4878731331 is a wasteful number, since it uses less digits than its factorization.

4878731331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196512 (or 196503 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 4878731331 is about 69847.9157240930. The cubic root of 4878731331 is about 1696.0382174169.

The spelling of 4878731331 in words is "four billion, eight hundred seventy-eight million, seven hundred thirty-one thousand, three hundred thirty-one".