68108201213258 has 4 divisors (see below), whose sum is σ = 102162301819890. Its totient is φ = 34054100606628.

The previous prime is 68108201213257. The next prime is 68108201213279. The reversal of 68108201213258 is 85231210280186.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 62486384757889 + 5621816455369 = 7904833^2 + 2371037^2 .

It is not an unprimeable number, because it can be changed into a prime (68108201213257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17027050303313 + ... + 17027050303316.

Almost surely, 2^{68108201213258} is an apocalyptic number.

68108201213258 is a deficient number, since it is larger than the sum of its proper divisors (34054100606632).

68108201213258 is a wasteful number, since it uses less digits than its factorization.

68108201213258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34054100606631.

The product of its (nonzero) digits is 368640, while the sum is 47.

The spelling of 68108201213258 in words is "sixty-eight trillion, one hundred eight billion, two hundred one million, two hundred thirteen thousand, two hundred fifty-eight".