18385081310 has 16 divisors (see below), whose sum is σ = 33116169600. Its totient is φ = 7348916256.

The previous prime is 18385081289. The next prime is 18385081343. The reversal of 18385081310 is 1318058381.

It is a super-2 number, since 2×18385081310² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 624425 + ... + 653204.

It is an arithmetic number, because the mean of its divisors is an integer number (2069760600).

Almost surely, 2^18385081310 is an apocalyptic number.

18385081310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18385081310 is a deficient number, since it is larger than the sum of its proper divisors (14731088290).

18385081310 is a wasteful number, since it uses less digits than its factorization.

18385081310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279075.

The product of its (nonzero) digits is 23040, while the sum is 38.

The spelling of 18385081310 in words is "eighteen billion, three hundred eighty-five million, eighty-one thousand, three hundred ten".