4813638611931 has 128 divisors (see below), whose sum is σ = 7672272814080. Its totient is φ = 2977212672000.

The previous prime is 4813638611917. The next prime is 4813638612011. The reversal of 4813638611931 is 1391168363184.

4813638611931 is a `hidden beast` number, since 4 + 8 + 13 + 6 + 3 + 8 + 611 + 9 + 3 + 1 = 666.

It is not a de Polignac number, because 4813638611931 - 2³⁸ = 4538760704987 is a prime.

It is a super-2 number, since 2×4813638611931² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4813638610931) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 605409006 + ... + 605416956.

It is an arithmetic number, because the mean of its divisors is an integer number (59939631360).

Almost surely, 2^{4813638611931} is an apocalyptic number.

4813638611931 is a deficient number, since it is larger than the sum of its proper divisors (2858634202149).

4813638611931 is a wasteful number, since it uses less digits than its factorization.

4813638611931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8314 (or 8308 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The spelling of 4813638611931 in words is "four trillion, eight hundred thirteen billion, six hundred thirty-eight million, six hundred eleven thousand, nine hundred thirty-one".