418949335818 has 24 divisors (see below), whose sum is σ = 977548450788. Its totient is φ = 128907487872.

The previous prime is 418949335729. The next prime is 418949335919. The reversal of 418949335818 is 818533949814.

418949335818 is a `hidden beast` number, since 4 + 1 + 8 + 9 + 49 + 3 + 3 + 581 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 413247122649 + 5702213169 = 642843^2 + 75513^2 .

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 11 ways as a sum of consecutive naturals, for example, 895190655 + ... + 895191122.

Almost surely, 2^418949335818 is an apocalyptic number.

418949335818 is an abundant number, since it is smaller than the sum of its proper divisors (558599114970).

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

418949335818 is a wasteful number, since it uses less digits than its factorization.

418949335818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790381798 (or 1790381795 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 63.

The spelling of 418949335818 in words is "four hundred eighteen billion, nine hundred forty-nine million, three hundred thirty-five thousand, eight hundred eighteen".