18004476452 has 24 divisors (see below), whose sum is σ = 33679642752. Its totient is φ = 8400814400.

The previous prime is 18004476431. The next prime is 18004476481. The reversal of 18004476452 is 25467440081.

It is a super-2 number, since 2×18004476452² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2382824 + ... + 2390367.

It is an arithmetic number, because the mean of its divisors is an integer number (1403318448).

Almost surely, 2^18004476452 is an apocalyptic number.

It is an amenable number.

18004476452 is a deficient number, since it is larger than the sum of its proper divisors (15675166300).

18004476452 is a wasteful number, since it uses less digits than its factorization.

18004476452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4773259 (or 4773257 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 41.

The spelling of 18004476452 in words is "eighteen billion, four million, four hundred seventy-six thousand, four hundred fifty-two".