18808254432 has 576 divisors, whose sum is σ = 64987453440. Its totient is φ = 5290790400.

The previous prime is 18808254431. The next prime is 18808254449. The reversal of 18808254432 is 23445280881.

18808254432 is a `hidden beast` number, since 18 + 80 + 82 + 54 + 432 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18808254431) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 115387983 + ... + 115388145.

It is an arithmetic number, because the mean of its divisors is an integer number (112825440).

Almost surely, 2^18808254432 is an apocalyptic number.

18808254432 is a gapful number since it is divisible by the number (12) 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 18808254432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32493726720).

18808254432 is an abundant number, since it is smaller than the sum of its proper divisors (46179199008).

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

18808254432 is a wasteful number, since it uses less digits than its factorization.

18808254432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 45.

The spelling of 18808254432 in words is "eighteen billion, eight hundred eight million, two hundred fifty-four thousand, four hundred thirty-two".