68835020067 has 48 divisors (see below), whose sum is σ = 114240721920. Its totient is φ = 39500136000.

The previous prime is 68835019973. The next prime is 68835020069. The reversal of 68835020067 is 76002053886.

68835020067 is a `hidden beast` number, since 6 + 8 + 83 + 502 + 0 + 0 + 67 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-68835020067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68835020069) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3660453 + ... + 3679209.

It is an arithmetic number, because the mean of its divisors is an integer number (2380015040).

Almost surely, 2^68835020067 is an apocalyptic number.

68835020067 is a deficient number, since it is larger than the sum of its proper divisors (45405701853).

68835020067 is a wasteful number, since it uses less digits than its factorization.

68835020067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20744 (or 20741 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 68835020067 in words is "sixty-eight billion, eight hundred thirty-five million, twenty thousand, sixty-seven".