68235135159 has 8 divisors (see below), whose sum is σ = 91076256000. Its totient is φ = 45442052216.

The previous prime is 68235135107. The next prime is 68235135169. The reversal of 68235135159 is 95153153286.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 68235135159 - 2²⁴ = 68218357943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68235135169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12006159 + ... + 12011840.

It is an arithmetic number, because the mean of its divisors is an integer number (11384532000).

Almost surely, 2^68235135159 is an apocalyptic number.

68235135159 is a deficient number, since it is larger than the sum of its proper divisors (22841120841).

68235135159 is a wasteful number, since it uses less digits than its factorization.

68235135159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24018949.

The product of its digits is 972000, while the sum is 48.

The spelling of 68235135159 in words is "sixty-eight billion, two hundred thirty-five million, one hundred thirty-five thousand, one hundred fifty-nine".