18427951104 has 96 divisors (see below), whose sum is σ = 49490073360. Its totient is φ = 6097534976.

The previous prime is 18427951093. The next prime is 18427951111. The reversal of 18427951104 is 40115972481.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 830782 + ... + 852674.

Almost surely, 2^18427951104 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 18427951104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24745036680).

18427951104 is an abundant number, since it is smaller than the sum of its proper divisors (31062122256).

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

18427951104 is a wasteful number, since it uses less digits than its factorization.

18427951104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22055 (or 22035 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 42.

The spelling of 18427951104 in words is "eighteen billion, four hundred twenty-seven million, nine hundred fifty-one thousand, one hundred four".