68098799680 has 28 divisors (see below), whose sum is σ = 162160267500. Its totient is φ = 27239519744.

The previous prime is 68098799651. The next prime is 68098799693. The reversal of 68098799680 is 8699789086.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 50765497344 + 17333302336 = 225312^2 + 131656^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106404055 + ... + 106404694.

It is an arithmetic number, because the mean of its divisors is an integer number (5791438125).

Almost surely, 2^68098799680 is an apocalyptic number.

It is an amenable number.

68098799680 is an abundant number, since it is smaller than the sum of its proper divisors (94061467820).

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

68098799680 is a wasteful number, since it uses less digits than its factorization.

68098799680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212808766 (or 212808756 counting only the distinct ones).

The product of its (nonzero) digits is 94058496, while the sum is 70.

The spelling of 68098799680 in words is "sixty-eight billion, ninety-eight million, seven hundred ninety-nine thousand, six hundred eighty".