5106391218 has 48 divisors (see below), whose sum is σ = 11793389400. Its totient is φ = 1591239168.

The previous prime is 5106391217. The next prime is 5106391247. The reversal of 5106391218 is 8121936015.

5106391218 is a `hidden beast` number, since 5 + 1 + 0 + 639 + 1 + 2 + 18 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5016463929 + 89927289 = 70827^2 + 9483^2 .

It is not an unprimeable number, because it can be changed into a prime (5106391217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10405 + ... + 101592.

Almost surely, 2^5106391218 is an apocalyptic number.

5106391218 is an abundant number, since it is smaller than the sum of its proper divisors (6686998182).

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

5106391218 is a wasteful number, since it uses less digits than its factorization.

5106391218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112171 (or 112168 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 5106391218 is about 71459.0177514357. The cubic root of 5106391218 is about 1722.0193537466.

The spelling of 5106391218 in words is "five billion, one hundred six million, three hundred ninety-one thousand, two hundred eighteen".