68755617 has 12 divisors (see below), whose sum is σ = 113501440. Its totient is φ = 39288888.

The previous prime is 68755571. The next prime is 68755627. The reversal of 68755617 is 71655786.

68755617 is a `hidden beast` number, since 6 + 87 + 5 + 561 + 7 = 666.

It is not a de Polignac number, because 68755617 - 2¹⁰ = 68754593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68755627) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 545617 + ... + 545742.

Almost surely, 2^68755617 is an apocalyptic number.

It is an amenable number.

68755617 is a deficient number, since it is larger than the sum of its proper divisors (44745823).

68755617 is a wasteful number, since it uses less digits than its factorization.

68755617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091372 (or 1091369 counting only the distinct ones).

The product of its digits is 352800, while the sum is 45.

The square root of 68755617 is about 8291.9006868148. The cubic root of 68755617 is about 409.6717916694.

The spelling of 68755617 in words is "sixty-eight million, seven hundred fifty-five thousand, six hundred seventeen".