5311817838 has 40 divisors (see below), whose sum is σ = 11947758768. Its totient is φ = 1763859456.

The previous prime is 5311817837. The next prime is 5311817839. The reversal of 5311817838 is 8387181135.

5311817838 is a `hidden beast` number, since 531 + 1 + 81 + 7 + 8 + 38 = 666.

It is an interprime number because it is at equal distance from previous prime (5311817837) and next prime (5311817839).

It is a junction number, because it is equal to n+sod(n) for n = 5311817793 and 5311817802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5311817831) 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 19 ways as a sum of consecutive naturals, for example, 19731 + ... + 104942.

Almost surely, 2^5311817838 is an apocalyptic number.

5311817838 is an abundant number, since it is smaller than the sum of its proper divisors (6635940930).

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

5311817838 is a wasteful number, since it uses less digits than its factorization.

5311817838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124950 (or 124941 counting only the distinct ones).

The product of its digits is 161280, while the sum is 45.

The square root of 5311817838 is about 72882.2189426200. The cubic root of 5311817838 is about 1744.8083234865.

The spelling of 5311817838 in words is "five billion, three hundred eleven million, eight hundred seventeen thousand, eight hundred thirty-eight".