18005034672384 has 144 divisors (see below), whose sum is σ = 49441825440000. Its totient is φ = 5813900771328.

The previous prime is 18005034672377. The next prime is 18005034672397. The reversal of 18005034672384 is 48327643050081.

It is a happy 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, 415992 + ... + 6015240.

It is an arithmetic number, because the mean of its divisors is an integer number (343346010000).

Almost surely, 2^{18005034672384} 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 18005034672384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24720912720000).

18005034672384 is an abundant number, since it is smaller than the sum of its proper divisors (31436790767616).

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

18005034672384 is an equidigital number, since it uses as much as digits as its factorization.

18005034672384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5599400 (or 5599386 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 51.

The spelling of 18005034672384 in words is "eighteen trillion, five billion, thirty-four million, six hundred seventy-two thousand, three hundred eighty-four".