18130429788 has 48 divisors (see below), whose sum is σ = 44319695616. Its totient is φ = 5757664000.

The previous prime is 18130429781. The next prime is 18130429799. The reversal of 18130429788 is 88792403181.

It is a self number, because there is not a number n which added to its sum of digits gives 18130429788.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18130429781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61581 + ... + 200132.

It is an arithmetic number, because the mean of its divisors is an integer number (923326992).

Almost surely, 2^18130429788 is an apocalyptic number.

It is an amenable number.

18130429788 is an abundant number, since it is smaller than the sum of its proper divisors (26189265828).

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

18130429788 is a wasteful number, since it uses less digits than its factorization.

18130429788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261994 (or 261992 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 51.

The spelling of 18130429788 in words is "eighteen billion, one hundred thirty million, four hundred twenty-nine thousand, seven hundred eighty-eight".