68169058518 has 32 divisors (see below), whose sum is σ = 148977607680. Its totient is φ = 20623246560.

The previous prime is 68169058513. The next prime is 68169058537. The reversal of 68169058518 is 81585096186.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68169058513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 810733 + ... + 890856.

It is an arithmetic number, because the mean of its divisors is an integer number (4655550240).

Almost surely, 2^68169058518 is an apocalyptic number.

68169058518 is an abundant number, since it is smaller than the sum of its proper divisors (80808549162).

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

68169058518 is a wasteful number, since it uses less digits than its factorization.

68169058518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702212.

The product of its (nonzero) digits is 4147200, while the sum is 57.

The spelling of 68169058518 in words is "sixty-eight billion, one hundred sixty-nine million, fifty-eight thousand, five hundred eighteen".