4813631988 has 48 divisors (see below), whose sum is σ = 12897776640. Its totient is φ = 1381903200.

The previous prime is 4813631959. The next prime is 4813631993. The reversal of 4813631988 is 8891363184.

It is a self number, because there is not a number n which added to its sum of digits gives 4813631988.

It is a congruent 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, 957148 + ... + 962163.

It is an arithmetic number, because the mean of its divisors is an integer number (268703680).

Almost surely, 2^4813631988 is an apocalyptic number.

It is an amenable number.

4813631988 is an abundant number, since it is smaller than the sum of its proper divisors (8084144652).

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

4813631988 is a wasteful number, since it uses less digits than its factorization.

4813631988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919348 (or 1919346 counting only the distinct ones).

The product of its digits is 995328, while the sum is 51.

The square root of 4813631988 is about 69380.3429510117. The cubic root of 4813631988 is about 1688.4607190295.

The spelling of 4813631988 in words is "four billion, eight hundred thirteen million, six hundred thirty-one thousand, nine hundred eighty-eight".