68157338596663 has 8 divisors (see below), whose sum is σ = 72326136758400. Its totient is φ = 64088993402808.

The previous prime is 68157338596649. The next prime is 68157338596679. The reversal of 68157338596663 is 36669583375186.

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-68157338596663 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68157338596663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68157338594663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25113240573 + ... + 25113243286.

It is an arithmetic number, because the mean of its divisors is an integer number (9040767094800).

Almost surely, 2^{68157338596663} is an apocalyptic number.

68157338596663 is a deficient number, since it is larger than the sum of its proper divisors (4168798161737).

68157338596663 is a wasteful number, since it uses less digits than its factorization.

68157338596663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50226483941.

The product of its digits is 3527193600, while the sum is 76.

The spelling of 68157338596663 in words is "sixty-eight trillion, one hundred fifty-seven billion, three hundred thirty-eight million, five hundred ninety-six thousand, six hundred sixty-three".