18091030104 has 256 divisors, whose sum is σ = 59579520000. Its totient is φ = 5082860160.

The previous prime is 18091030093. The next prime is 18091030129. The reversal of 18091030104 is 40103019081.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4517367 + ... + 4521369.

It is an arithmetic number, because the mean of its divisors is an integer number (232732500).

Almost surely, 2^18091030104 is an apocalyptic number.

18091030104 is a gapful number since it is divisible by the number (14) 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 18091030104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29789760000).

18091030104 is an abundant number, since it is smaller than the sum of its proper divisors (41488489896).

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

18091030104 is a wasteful number, since it uses less digits than its factorization.

18091030104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4100 (or 4076 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

Adding to 18091030104 its reverse (40103019081), we get a palindrome (58194049185).

The spelling of 18091030104 in words is "eighteen billion, ninety-one million, thirty thousand, one hundred four".