68373940992 has 144 divisors (see below), whose sum is σ = 210308958720. Its totient is φ = 19315777536.

The previous prime is 68373940967. The next prime is 68373940997. The reversal of 68373940992 is 29904937386.

It is not an unprimeable number, because it can be changed into a prime (68373940997) 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 15 ways as a sum of consecutive naturals, for example, 407013 + ... + 549915.

It is an arithmetic number, because the mean of its divisors is an integer number (1460478880).

Almost surely, 2^68373940992 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 68373940992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105154479360).

68373940992 is an abundant number, since it is smaller than the sum of its proper divisors (141935017728).

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

68373940992 is a wasteful number, since it uses less digits than its factorization.

68373940992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143018 (or 143004 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 60.

The spelling of 68373940992 in words is "sixty-eight billion, three hundred seventy-three million, nine hundred forty thousand, nine hundred ninety-two".