18094308408 has 192 divisors, whose sum is σ = 55439354880. Its totient is φ = 5281804800.

The previous prime is 18094308359. The next prime is 18094308413. The reversal of 18094308408 is 80480349081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5719035 + ... + 5722197.

It is an arithmetic number, because the mean of its divisors is an integer number (288746640).

Almost surely, 2^18094308408 is an apocalyptic number.

18094308408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18094308408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27719677440).

18094308408 is an abundant number, since it is smaller than the sum of its proper divisors (37345046472).

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

18094308408 is a wasteful number, since it uses less digits than its factorization.

18094308408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3450 (or 3443 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The spelling of 18094308408 in words is "eighteen billion, ninety-four million, three hundred eight thousand, four hundred eight".