18487568854368 has 192 divisors, whose sum is σ = 55505873142720. Its totient is φ = 5983915032576.

The previous prime is 18487568854351. The next prime is 18487568854451. The reversal of 18487568854368 is 86345886578481.

18487568854368 is a `hidden beast` number, since 1 + 8 + 4 + 8 + 7 + 5 + 6 + 8 + 8 + 543 + 68 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2360746 + ... + 6522902.

It is an arithmetic number, because the mean of its divisors is an integer number (289093089285).

Almost surely, 2^{18487568854368} is an apocalyptic number.

18487568854368 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 18487568854368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27752936571360).

18487568854368 is an abundant number, since it is smaller than the sum of its proper divisors (37018304288352).

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

18487568854368 is a wasteful number, since it uses less digits than its factorization.

18487568854368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4162326 (or 4162312 counting only the distinct ones).

The product of its digits is 9909043200, while the sum is 81.

The spelling of 18487568854368 in words is "eighteen trillion, four hundred eighty-seven billion, five hundred sixty-eight million, eight hundred fifty-four thousand, three hundred sixty-eight".