2085216418 has 8 divisors (see below), whose sum is σ = 3186840348. Its totient is φ = 1022936304.

The previous prime is 2085216391. The next prime is 2085216421. The reversal of 2085216418 is 8146125802.

It can be written as a sum of positive squares in 2 ways, for example, as 1872552529 + 212663889 = 43273^2 + 14583^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9835821 + ... + 9836032.

Almost surely, 2^2085216418 is an apocalyptic number.

2085216418 is a deficient number, since it is larger than the sum of its proper divisors (1101623930).

2085216418 is a wasteful number, since it uses less digits than its factorization.

2085216418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19671908.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 2085216418 is about 45664.1699585134. The cubic root of 2085216418 is about 1277.5670782522.

The spelling of 2085216418 in words is "two billion, eighty-five million, two hundred sixteen thousand, four hundred eighteen".