5185158918 has 16 divisors (see below), whose sum is σ = 10378304496. Its totient is φ = 1727055200.

The previous prime is 5185158889. The next prime is 5185158949. The reversal of 5185158918 is 8198515815.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324321 + ... + 339932.

It is an arithmetic number, because the mean of its divisors is an integer number (648644031).

Almost surely, 2^5185158918 is an apocalyptic number.

5185158918 is an abundant number, since it is smaller than the sum of its proper divisors (5193145578).

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

5185158918 is a wasteful number, since it uses less digits than its factorization.

5185158918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665559.

The product of its digits is 576000, while the sum is 51.

The square root of 5185158918 is about 72008.0475919185. The cubic root of 5185158918 is about 1730.8284445887.

The spelling of 5185158918 in words is "five billion, one hundred eighty-five million, one hundred fifty-eight thousand, nine hundred eighteen".