18106025344 has 64 divisors (see below), whose sum is σ = 39378980880. Its totient is φ = 8223897600.

The previous prime is 18106025317. The next prime is 18106025347. The reversal of 18106025344 is 44352060181.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18106025347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2278402 + ... + 2286334.

Almost surely, 2^18106025344 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 18106025344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19689490440).

18106025344 is an abundant number, since it is smaller than the sum of its proper divisors (21272955536).

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

18106025344 is a wasteful number, since it uses less digits than its factorization.

18106025344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9579 (or 9567 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 18106025344 in words is "eighteen billion, one hundred six million, twenty-five thousand, three hundred forty-four".