68535714609 has 6 divisors (see below), whose sum is σ = 98996032226. Its totient is φ = 45690476400.

The previous prime is 68535714547. The next prime is 68535714613. The reversal of 68535714609 is 90641753586.

68535714609 is a `hidden beast` number, since 6 + 8 + 5 + 3 + 571 + 4 + 60 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 41157048384 + 27378666225 = 202872^2 + 165465^2 .

It is not a de Polignac number, because 68535714609 - 2²¹ = 68533617457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68535714619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3807539692 + ... + 3807539709.

Almost surely, 2^68535714609 is an apocalyptic number.

It is an amenable number.

68535714609 is a deficient number, since it is larger than the sum of its proper divisors (30460317617).

68535714609 is a wasteful number, since it uses less digits than its factorization.

68535714609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7615079407 (or 7615079404 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 68535714609 in words is "sixty-eight billion, five hundred thirty-five million, seven hundred fourteen thousand, six hundred nine".