18180432207234 has 192 divisors, whose sum is σ = 44430027123456. Its totient is φ = 5325465600000.

The previous prime is 18180432207127. The next prime is 18180432207269. The reversal of 18180432207234 is 43270223408181.

18180432207234 is a `hidden beast` number, since 1 + 8 + 1 + 8 + 0 + 432 + 207 + 2 + 3 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 18180432207234.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1192855854 + ... + 1192871094.

It is an arithmetic number, because the mean of its divisors is an integer number (231406391268).

Almost surely, 2^{18180432207234} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18180432207234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22215013561728).

18180432207234 is an abundant number, since it is smaller than the sum of its proper divisors (26249594916222).

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

18180432207234 is a wasteful number, since it uses less digits than its factorization.

18180432207234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16985 (or 16982 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 18180432207234 in words is "eighteen trillion, one hundred eighty billion, four hundred thirty-two million, two hundred seven thousand, two hundred thirty-four".