5121186812 has 96 divisors (see below), whose sum is σ = 11009779200. Its totient is φ = 2035694592.

The previous prime is 5121186809. The next prime is 5121186839. The reversal of 5121186812 is 2186811215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6329864 + ... + 6330672.

It is an arithmetic number, because the mean of its divisors is an integer number (114685200).

Almost surely, 2^5121186812 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 5121186812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5504889600).

5121186812 is an abundant number, since it is smaller than the sum of its proper divisors (5888592388).

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

5121186812 is a wasteful number, since it uses less digits than its factorization.

5121186812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075 (or 1073 counting only the distinct ones).

The product of its digits is 7680, while the sum is 35.

The square root of 5121186812 is about 71562.4679004295. The cubic root of 5121186812 is about 1723.6809140779.

The spelling of 5121186812 in words is "five billion, one hundred twenty-one million, one hundred eighty-six thousand, eight hundred twelve".