18040128846 has 32 divisors (see below), whose sum is σ = 36476593920. Its totient is φ = 5947468224.

The previous prime is 18040128829. The next prime is 18040128857. The reversal of 18040128846 is 64882104081.

It is a junction number, because it is equal to n+sod(n) for n = 18040128798 and 18040128807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 481921 + ... + 518003.

It is an arithmetic number, because the mean of its divisors is an integer number (1139893560).

Almost surely, 2^18040128846 is an apocalyptic number.

18040128846 is an abundant number, since it is smaller than the sum of its proper divisors (18436465074).

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

18040128846 is a wasteful number, since it uses less digits than its factorization.

18040128846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37000.

The product of its (nonzero) digits is 98304, while the sum is 42.

The spelling of 18040128846 in words is "eighteen billion, forty million, one hundred twenty-eight thousand, eight hundred forty-six".