68691716859100 has 36 divisors (see below), whose sum is σ = 156906342724600. Its totient is φ = 26030545335360.

The previous prime is 68691716859047. The next prime is 68691716859107. The reversal of 68691716859100 is 195861719686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68691716859107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18076765695 + ... + 18076769494.

Almost surely, 2^{68691716859100} is an apocalyptic number.

It is an amenable number.

68691716859100 is an abundant number, since it is smaller than the sum of its proper divisors (88214625865500).

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

68691716859100 is a wasteful number, since it uses less digits than its factorization.

68691716859100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36153535222 (or 36153535215 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 67.

The spelling of 68691716859100 in words is "sixty-eight trillion, six hundred ninety-one billion, seven hundred sixteen million, eight hundred fifty-nine thousand, one hundred".