5213813836 has 72 divisors (see below), whose sum is σ = 11978139600. Its totient is φ = 1961285760.

The previous prime is 5213813821. The next prime is 5213813863. The reversal of 5213813836 is 6383183125.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20830 + ... + 104218.

It is an arithmetic number, because the mean of its divisors is an integer number (166363050).

Almost surely, 2^5213813836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5213813836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5989069800).

5213813836 is an abundant number, since it is smaller than the sum of its proper divisors (6764325764).

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

5213813836 is a wasteful number, since it uses less digits than its factorization.

5213813836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83447 (or 83438 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 5213813836 is about 72206.7437016793. The cubic root of 5213813836 is about 1734.0109676757.

The spelling of 5213813836 in words is "five billion, two hundred thirteen million, eight hundred thirteen thousand, eight hundred thirty-six".