618268018 has 32 divisors (see below), whose sum is σ = 1002608640. Its totient is φ = 284996880.

The previous prime is 618267989. The next prime is 618268031. The reversal of 618268018 is 810862816.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 599163 + ... + 600193.

It is an arithmetic number, because the mean of its divisors is an integer number (31331520).

Almost surely, 2^618268018 is an apocalyptic number.

618268018 is a deficient number, since it is larger than the sum of its proper divisors (384340622).

618268018 is a wasteful number, since it uses less digits than its factorization.

618268018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462.

The product of its (nonzero) digits is 36864, while the sum is 40.

The square root of 618268018 is about 24864.9958375223. The cubic root of 618268018 is about 851.9071447293.

The spelling of 618268018 in words is "six hundred eighteen million, two hundred sixty-eight thousand, eighteen".