18104478720 has 176 divisors, whose sum is σ = 58206854400. Its totient is φ = 4802789376.

The previous prime is 18104478697. The next prime is 18104478761. The reversal of 18104478720 is 2787440181.

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 15 ways as a sum of consecutive naturals, for example, 3053679 + ... + 3059601.

Almost surely, 2^18104478720 is an apocalyptic number.

18104478720 is a gapful number since it is divisible by the number (10) 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 18104478720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29103427200).

18104478720 is an abundant number, since it is smaller than the sum of its proper divisors (40102375680).

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

18104478720 is a wasteful number, since it uses less digits than its factorization.

18104478720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6150 (or 6132 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 42.

The spelling of 18104478720 in words is "eighteen billion, one hundred four million, four hundred seventy-eight thousand, seven hundred twenty".