18030117810 has 16 divisors (see below), whose sum is σ = 43272282816. Its totient is φ = 4808031408.

The previous prime is 18030117739. The next prime is 18030117817. The reversal of 18030117810 is 1871103081.

It is a happy number.

It is a super-2 number, since 2×18030117810² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 601003927 = 18030117810 / (1 + 8 + 0 + 3 + 0 + 1 + 1 + 7 + 8 + 1 + 0).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18030117817) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 300501934 + ... + 300501993.

It is an arithmetic number, because the mean of its divisors is an integer number (2704517676).

Almost surely, 2^18030117810 is an apocalyptic number.

18030117810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18030117810 is an abundant number, since it is smaller than the sum of its proper divisors (25242165006).

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

18030117810 is a wasteful number, since it uses less digits than its factorization.

18030117810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601003937.

The product of its (nonzero) digits is 1344, while the sum is 30.

The spelling of 18030117810 in words is "eighteen billion, thirty million, one hundred seventeen thousand, eight hundred ten".