68663794837 has 8 divisors (see below), whose sum is σ = 74953296000. Its totient is φ = 62382183360.

The previous prime is 68663794811. The next prime is 68663794889. The reversal of 68663794837 is 73849736686.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68663794837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68663794337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1954212 + ... + 1989037.

It is an arithmetic number, because the mean of its divisors is an integer number (9369162000).

Almost surely, 2^68663794837 is an apocalyptic number.

It is an amenable number.

68663794837 is a deficient number, since it is larger than the sum of its proper divisors (6289501163).

68663794837 is a wasteful number, since it uses less digits than its factorization.

68663794837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3944843.

The product of its digits is 219469824, while the sum is 67.

The spelling of 68663794837 in words is "sixty-eight billion, six hundred sixty-three million, seven hundred ninety-four thousand, eight hundred thirty-seven".