68290967808 has 360 divisors, whose sum is σ = 234949885632. Its totient is φ = 19324956672.

The previous prime is 68290967779. The next prime is 68290967809. The reversal of 68290967808 is 80876909286.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (68290967809) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 15529066 + ... + 15533462.

Almost surely, 2^68290967808 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 68290967808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117474942816).

68290967808 is an abundant number, since it is smaller than the sum of its proper divisors (166658917824).

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

68290967808 is a wasteful number, since it uses less digits than its factorization.

68290967808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4539 (or 4516 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 63.

The spelling of 68290967808 in words is "sixty-eight billion, two hundred ninety million, nine hundred sixty-seven thousand, eight hundred eight".