68922067968 has 440 divisors, whose sum is σ = 227198331360. Its totient is φ = 20676280320.

The previous prime is 68922067967. The next prime is 68922067979. The reversal of 68922067968 is 86976022986.

It is a super-2 number, since 2×68922067968² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68922067967) 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, 44208373 + ... + 44209931.

It is an arithmetic number, because the mean of its divisors is an integer number (516359844).

Almost surely, 2^68922067968 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 68922067968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113599165680).

68922067968 is an abundant number, since it is smaller than the sum of its proper divisors (158276263392).

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

68922067968 is a wasteful number, since it uses less digits than its factorization.

68922067968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645 (or 1618 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 63.

The spelling of 68922067968 in words is "sixty-eight billion, nine hundred twenty-two million, sixty-seven thousand, nine hundred sixty-eight".