68385855607 has 2 divisors, whose sum is σ = 68385855608. Its totient is φ = 68385855606.

The previous prime is 68385855589. The next prime is 68385855677. The reversal of 68385855607 is 70655858386.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68385855607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68385855677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34192927803 + 34192927804.

It is an arithmetic number, because the mean of its divisors is an integer number (34192927804).

Almost surely, 2^68385855607 is an apocalyptic number.

68385855607 is a deficient number, since it is larger than the sum of its proper divisors (1).

68385855607 is an equidigital number, since it uses as much as digits as its factorization.

68385855607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384000, while the sum is 61.

The spelling of 68385855607 in words is "sixty-eight billion, three hundred eighty-five million, eight hundred fifty-five thousand, six hundred seven".