68072371802 has 32 divisors (see below), whose sum is σ = 105513674112. Its totient is φ = 32918243904.

The previous prime is 68072371799. The next prime is 68072371811. The reversal of 68072371802 is 20817327086.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3947483 + ... + 3964689.

It is an arithmetic number, because the mean of its divisors is an integer number (3297302316).

Almost surely, 2^68072371802 is an apocalyptic number.

68072371802 is a deficient number, since it is larger than the sum of its proper divisors (37441302310).

68072371802 is a wasteful number, since it uses less digits than its factorization.

68072371802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17702.

The product of its (nonzero) digits is 225792, while the sum is 44.

Adding to 68072371802 its reverse (20817327086), we get a palindrome (88889698888).

The spelling of 68072371802 in words is "sixty-eight billion, seventy-two million, three hundred seventy-one thousand, eight hundred two".