68289487488 has 576 divisors, whose sum is σ = 221643021600. Its totient is φ = 20107616256.

The previous prime is 68289487433. The next prime is 68289487517. The reversal of 68289487488 is 88478498286.

68289487488 is a `hidden beast` number, since 68 + 2 + 8 + 9 + 4 + 87 + 488 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1288480870 + ... + 1288480922.

Almost surely, 2^68289487488 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 68289487488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110821510800).

68289487488 is an abundant number, since it is smaller than the sum of its proper divisors (153353534112).

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

68289487488 is a wasteful number, since it uses less digits than its factorization.

68289487488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 157 counting only the distinct ones).

The product of its digits is 396361728, while the sum is 72.

The spelling of 68289487488 in words is "sixty-eight billion, two hundred eighty-nine million, four hundred eighty-seven thousand, four hundred eighty-eight".