18401747004 has 72 divisors (see below), whose sum is σ = 47995391808. Its totient is φ = 5941463040.

The previous prime is 18401746999. The next prime is 18401747017. The reversal of 18401747004 is 40074710481.

18401747004 is a `hidden beast` number, since 184 + 0 + 1 + 7 + 470 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 18401747004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108064 + ... + 220184.

It is an arithmetic number, because the mean of its divisors is an integer number (666602664).

Almost surely, 2^18401747004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18401747004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23997695904).

18401747004 is an abundant number, since it is smaller than the sum of its proper divisors (29593644804).

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

18401747004 is a wasteful number, since it uses less digits than its factorization.

18401747004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112275 (or 112270 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The spelling of 18401747004 in words is "eighteen billion, four hundred one million, seven hundred forty-seven thousand, four".