68666675 has 24 divisors (see below), whose sum is σ = 106159872. Its totient is φ = 42804000.

The previous prime is 68666651. The next prime is 68666681. The reversal of 68666675 is 57666686.

It is not a de Polignac number, because 68666675 - 2¹² = 68662579 is a prime.

It is a super-2 number, since 2×68666675² = 9430224511111250, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15911 + ... + 19760.

It is an arithmetic number, because the mean of its divisors is an integer number (4423328).

Almost surely, 2^68666675 is an apocalyptic number.

68666675 is a deficient number, since it is larger than the sum of its proper divisors (37493197).

68666675 is a wasteful number, since it uses less digits than its factorization.

68666675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35699 (or 35694 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 50.

The square root of 68666675 is about 8286.5357659278. The cubic root of 68666675 is about 409.4950654954.

The spelling of 68666675 in words is "sixty-eight million, six hundred sixty-six thousand, six hundred seventy-five".