385183267218 has 24 divisors (see below), whose sum is σ = 865473515088. Its totient is φ = 128394422244.

The previous prime is 385183267163. The next prime is 385183267223. The reversal of 385183267218 is 812762381583.

385183267218 is a `hidden beast` number, since 38 + 518 + 3 + 26 + 72 + 1 + 8 = 666.

It is a super-2 number, since 2×385183267218² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 396278596 + ... + 396279567.

It is an arithmetic number, because the mean of its divisors is an integer number (36061396462).

Almost surely, 2^385183267218 is an apocalyptic number.

385183267218 is an abundant number, since it is smaller than the sum of its proper divisors (480290247870).

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

385183267218 is an equidigital number, since it uses as much as digits as its factorization.

385183267218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792558180 (or 792558168 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The spelling of 385183267218 in words is "three hundred eighty-five billion, one hundred eighty-three million, two hundred sixty-seven thousand, two hundred eighteen".