68135755316 has 24 divisors (see below), whose sum is σ = 123364305120. Its totient is φ = 32889098592.

The previous prime is 68135755301. The next prime is 68135755333. The reversal of 68135755316 is 61355753186.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1059515 + ... + 1121981.

It is an arithmetic number, because the mean of its divisors is an integer number (5140179380).

Almost surely, 2^68135755316 is an apocalyptic number.

It is an amenable number.

68135755316 is a deficient number, since it is larger than the sum of its proper divisors (55228549804).

68135755316 is a wasteful number, since it uses less digits than its factorization.

68135755316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71903 (or 71901 counting only the distinct ones).

The product of its digits is 2268000, while the sum is 50.

The spelling of 68135755316 in words is "sixty-eight billion, one hundred thirty-five million, seven hundred fifty-five thousand, three hundred sixteen".