18818504875008 has 528 divisors, whose sum is σ = 56106775460736. Its totient is φ = 6071611392000.

The previous prime is 18818504874979. The next prime is 18818504875031. The reversal of 18818504875008 is 80057840581881.

18818504875008 is a `hidden beast` number, since 1 + 8 + 8 + 1 + 85 + 0 + 48 + 7 + 500 + 8 = 666.

It is a super-2 number, since 2×18818504875008² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27552715435 + ... + 27552716117.

It is an arithmetic number, because the mean of its divisors is an integer number (106262832312).

Almost surely, 2^{18818504875008} is an apocalyptic number.

18818504875008 is a gapful number since it is divisible by the number (18) 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 18818504875008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28053387730368).

18818504875008 is an abundant number, since it is smaller than the sum of its proper divisors (37288270585728).

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

18818504875008 is a wasteful number, since it uses less digits than its factorization.

18818504875008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280 (or 1259 counting only the distinct ones).

The product of its (nonzero) digits is 22937600, while the sum is 63.

The spelling of 18818504875008 in words is "eighteen trillion, eight hundred eighteen billion, five hundred four million, eight hundred seventy-five thousand, eight".