68672974135 has 16 divisors (see below), whose sum is σ = 82631577600. Its totient is φ = 54789153696.

The previous prime is 68672974133. The next prime is 68672974163. The reversal of 68672974135 is 53147927686.

It is a cyclic number.

It is not a de Polignac number, because 68672974135 - 2¹ = 68672974133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68672974135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68672974133) 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, 6313972 + ... + 6324838.

It is an arithmetic number, because the mean of its divisors is an integer number (5164473600).

Almost surely, 2^68672974135 is an apocalyptic number.

68672974135 is a deficient number, since it is larger than the sum of its proper divisors (13958603465).

68672974135 is a wasteful number, since it uses less digits than its factorization.

68672974135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14190.

The product of its digits is 15240960, while the sum is 58.

The spelling of 68672974135 in words is "sixty-eight billion, six hundred seventy-two million, nine hundred seventy-four thousand, one hundred thirty-five".