68530987008 has 560 divisors, whose sum is σ = 229793200560. Its totient is φ = 20171980800.

The previous prime is 68530987003. The next prime is 68530987033. The reversal of 68530987008 is 80078903586.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68530987001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 299261838 + ... + 299262066.

It is an arithmetic number, because the mean of its divisors is an integer number (410345001).

Almost surely, 2^68530987008 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 68530987008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114896600280).

68530987008 is an abundant number, since it is smaller than the sum of its proper divisors (161262213552).

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

68530987008 is a wasteful number, since it uses less digits than its factorization.

68530987008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 68530987008 in words is "sixty-eight billion, five hundred thirty million, nine hundred eighty-seven thousand, eight".