17861545104 has 120 divisors (see below), whose sum is σ = 50103936000. Its totient is φ = 5480557056.

The previous prime is 17861545073. The next prime is 17861545111. The reversal of 17861545104 is 40154516871.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3104022 + ... + 3109770.

It is an arithmetic number, because the mean of its divisors is an integer number (417532800).

Almost surely, 2^17861545104 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 17861545104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25051968000).

17861545104 is an abundant number, since it is smaller than the sum of its proper divisors (32242390896).

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

17861545104 is a wasteful number, since it uses less digits than its factorization.

17861545104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6169 (or 6150 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 42.

The spelling of 17861545104 in words is "seventeen billion, eight hundred sixty-one million, five hundred forty-five thousand, one hundred four".