5109601818 has 16 divisors (see below), whose sum is σ = 10220256576. Its totient is φ = 1703025120.

The previous prime is 5109601813. The next prime is 5109601831. The reversal of 5109601818 is 8181069015.

It is a super-2 number, since 2×5109601818² = 52216061477017810248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5109601813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28363 + ... + 104993.

It is an arithmetic number, because the mean of its divisors is an integer number (638766036).

Almost surely, 2^5109601818 is an apocalyptic number.

5109601818 is an abundant number, since it is smaller than the sum of its proper divisors (5110654758).

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

5109601818 is a wasteful number, since it uses less digits than its factorization.

5109601818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87749.

The product of its (nonzero) digits is 17280, while the sum is 39.

The square root of 5109601818 is about 71481.4788459220. The cubic root of 5109601818 is about 1722.3801798039.

The spelling of 5109601818 in words is "five billion, one hundred nine million, six hundred one thousand, eight hundred eighteen".