5181365208 has 64 divisors (see below), whose sum is σ = 13734864000. Its totient is φ = 1624257792.

The previous prime is 5181365207. The next prime is 5181365209. The reversal of 5181365208 is 8025631815.

It is an interprime number because it is at equal distance from previous prime (5181365207) and next prime (5181365209).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5181365207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21003 + ... + 103941.

It is an arithmetic number, because the mean of its divisors is an integer number (214607250).

Almost surely, 2^5181365208 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 5181365208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6867432000).

5181365208 is an abundant number, since it is smaller than the sum of its proper divisors (8553498792).

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

5181365208 is a wasteful number, since it uses less digits than its factorization.

5181365208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83104 (or 83100 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 5181365208 is about 71981.7005078374. The cubic root of 5181365208 is about 1730.4062226709.

The spelling of 5181365208 in words is "five billion, one hundred eighty-one million, three hundred sixty-five thousand, two hundred eight".