68686571075 has 6 divisors (see below), whose sum is σ = 85171348164. Its totient is φ = 54949256840.

The previous prime is 68686571033. The next prime is 68686571099. The reversal of 68686571075 is 57017568686.

It is not a de Polignac number, because 68686571075 - 2⁸ = 68686570819 is a prime.

It is a super-3 number, since 3×68686571075³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1373731397 + ... + 1373731446.

It is an arithmetic number, because the mean of its divisors is an integer number (14195224694).

Almost surely, 2^68686571075 is an apocalyptic number.

68686571075 is a deficient number, since it is larger than the sum of its proper divisors (16484777089).

68686571075 is a wasteful number, since it uses less digits than its factorization.

68686571075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2747462853 (or 2747462848 counting only the distinct ones).

The product of its (nonzero) digits is 16934400, while the sum is 59.

The spelling of 68686571075 in words is "sixty-eight billion, six hundred eighty-six million, five hundred seventy-one thousand, seventy-five".