18130429818 has 12 divisors (see below), whose sum is σ = 39282597978. Its totient is φ = 6043476600.

The previous prime is 18130429817. The next prime is 18130429861. The reversal of 18130429818 is 81892403181.

18130429818 is a `hidden beast` number, since 18 + 130 + 429 + 81 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 16004021049 + 2126408769 = 126507^2 + 46113^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18130429817) 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 5 ways as a sum of consecutive naturals, for example, 503623033 + ... + 503623068.

Almost surely, 2^18130429818 is an apocalyptic number.

18130429818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

18130429818 is an abundant number, since it is smaller than the sum of its proper divisors (21152168160).

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

18130429818 is a wasteful number, since it uses less digits than its factorization.

18130429818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007246109 (or 1007246106 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The spelling of 18130429818 in words is "eighteen billion, one hundred thirty million, four hundred twenty-nine thousand, eight hundred eighteen".