5131450218 has 16 divisors (see below), whose sum is σ = 10314475200. Its totient is φ = 1701887616.

The previous prime is 5131450201. The next prime is 5131450223. The reversal of 5131450218 is 8120541315.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2147655 + ... + 2150042.

It is an arithmetic number, because the mean of its divisors is an integer number (644654700).

Almost surely, 2^5131450218 is an apocalyptic number.

5131450218 is an abundant number, since it is smaller than the sum of its proper divisors (5183024982).

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

5131450218 is a wasteful number, since it uses less digits than its factorization.

5131450218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4297901.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 5131450218 is about 71634.1414271156. The cubic root of 5131450218 is about 1724.8316259939.

The spelling of 5131450218 in words is "five billion, one hundred thirty-one million, four hundred fifty thousand, two hundred eighteen".