68257606239 has 24 divisors (see below), whose sum is σ = 101376269280. Its totient is φ = 44236850112.

The previous prime is 68257606189. The next prime is 68257606247. The reversal of 68257606239 is 93260675286.

68257606239 is a `hidden beast` number, since 6 + 8 + 2 + 5 + 7 + 6 + 0 + 623 + 9 = 666.

It is not a de Polignac number, because 68257606239 - 2¹⁹ = 68257081951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68257616239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 604419 + ... + 708404.

It is an arithmetic number, because the mean of its divisors is an integer number (4224011220).

Almost surely, 2^68257606239 is an apocalyptic number.

68257606239 is a deficient number, since it is larger than the sum of its proper divisors (33118663041).

68257606239 is a wasteful number, since it uses less digits than its factorization.

68257606239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312991 (or 1312988 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 68257606239 in words is "sixty-eight billion, two hundred fifty-seven million, six hundred six thousand, two hundred thirty-nine".