68125864186 has 8 divisors (see below), whose sum is σ = 102190038804. Its totient is φ = 34062517920.

The previous prime is 68125864099. The next prime is 68125864187. The reversal of 68125864186 is 68146852186.

It can be written as a sum of positive squares in 2 ways, for example, as 67746198961 + 379665225 = 260281^2 + 19485^2 .

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

It is a super-2 number, since 2×68125864186² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68125864187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75816 + ... + 376828.

Almost surely, 2^68125864186 is an apocalyptic number.

68125864186 is a deficient number, since it is larger than the sum of its proper divisors (34064174618).

68125864186 is a wasteful number, since it uses less digits than its factorization.

68125864186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414176.

The product of its digits is 4423680, while the sum is 55.

The spelling of 68125864186 in words is "sixty-eight billion, one hundred twenty-five million, eight hundred sixty-four thousand, one hundred eighty-six".