68087218500 has 576 divisors, whose sum is σ = 264931430400. Its totient is φ = 14364979200.

The previous prime is 68087218417. The next prime is 68087218531. The reversal of 68087218500 is 581278086.

68087218500 is a `hidden beast` number, since 68 + 0 + 8 + 72 + 18 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 28380301 + ... + 28382699.

It is an arithmetic number, because the mean of its divisors is an integer number (459950400).

Almost surely, 2^68087218500 is an apocalyptic number.

68087218500 is a gapful number since it is divisible by the number (60) 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 68087218500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132465715200).

68087218500 is an abundant number, since it is smaller than the sum of its proper divisors (196844211900).

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

68087218500 is a wasteful number, since it uses less digits than its factorization.

68087218500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2501 (or 2486 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The spelling of 68087218500 in words is "sixty-eight billion, eighty-seven million, two hundred eighteen thousand, five hundred".