5351638218 has 32 divisors (see below), whose sum is σ = 10918094976. Its totient is φ = 1748155968.

The previous prime is 5351638181. The next prime is 5351638219. The reversal of 5351638218 is 8128361535.

It is a self number, because there is not a number n which added to its sum of digits gives 5351638218.

It is not an unprimeable number, because it can be changed into a prime (5351638219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272580 + ... + 291552.

It is an arithmetic number, because the mean of its divisors is an integer number (341190468).

Almost surely, 2^5351638218 is an apocalyptic number.

5351638218 is an abundant number, since it is smaller than the sum of its proper divisors (5566456758).

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

5351638218 is a wasteful number, since it uses less digits than its factorization.

5351638218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19918.

The product of its digits is 172800, while the sum is 42.

The square root of 5351638218 is about 73154.8919621921. The cubic root of 5351638218 is about 1749.1574957363.

The spelling of 5351638218 in words is "five billion, three hundred fifty-one million, six hundred thirty-eight thousand, two hundred eighteen".