68018950240 has 48 divisors (see below), whose sum is σ = 170147410272. Its totient is φ = 25607133184.

The previous prime is 68018950183. The next prime is 68018950243. The reversal of 68018950240 is 4205981086.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68018950243) 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 7 ways as a sum of consecutive naturals, for example, 12500764 + ... + 12506203.

It is an arithmetic number, because the mean of its divisors is an integer number (3544737714).

Almost surely, 2^68018950240 is an apocalyptic number.

It is an amenable number.

68018950240 is an abundant number, since it is smaller than the sum of its proper divisors (102128460032).

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

68018950240 is a wasteful number, since it uses less digits than its factorization.

68018950240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25006999 (or 25006991 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 68018950240 in words is "sixty-eight billion, eighteen million, nine hundred fifty thousand, two hundred forty".