5185211720 has 128 divisors (see below), whose sum is σ = 13281408000. Its totient is φ = 1806105600.

The previous prime is 5185211711. The next prime is 5185211729. The reversal of 5185211720 is 271125815.

It is an interprime number because it is at equal distance from previous prime (5185211711) and next prime (5185211729).

It is not an unprimeable number, because it can be changed into a prime (5185211729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2656745 + ... + 2658695.

It is an arithmetic number, because the mean of its divisors is an integer number (103761000).

Almost surely, 2^5185211720 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 5185211720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6640704000).

5185211720 is an abundant number, since it is smaller than the sum of its proper divisors (8096196280).

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

5185211720 is a wasteful number, since it uses less digits than its factorization.

5185211720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2263 (or 2259 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 32.

The square root of 5185211720 is about 72008.4142305606. The cubic root of 5185211720 is about 1730.8343197473.

The spelling of 5185211720 in words is "five billion, one hundred eighty-five million, two hundred eleven thousand, seven hundred twenty".