68665543627386 has 32 divisors (see below), whose sum is σ = 143303182604928. Its totient is φ = 21893181685760.

The previous prime is 68665543627381. The next prime is 68665543627393. The reversal of 68665543627386 is 68372634556686.

It is a super-2 number, since 2×68665543627386² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68665543627381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15327550 + ... + 19294166.

It is an arithmetic number, because the mean of its divisors is an integer number (4478224456404).

Almost surely, 2^{68665543627386} is an apocalyptic number.

68665543627386 is an abundant number, since it is smaller than the sum of its proper divisors (74637638977542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68665543627386 is a wasteful number, since it uses less digits than its factorization.

68665543627386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4092086.

The product of its digits is 6270566400, while the sum is 75.

The spelling of 68665543627386 in words is "sixty-eight trillion, six hundred sixty-five billion, five hundred forty-three million, six hundred twenty-seven thousand, three hundred eighty-six".