68685710439 has 32 divisors (see below), whose sum is σ = 93862821888. Its totient is φ = 44664480000.

The previous prime is 68685710407. The next prime is 68685710441. The reversal of 68685710439 is 93401758686.

It is not a de Polignac number, because 68685710439 - 2⁵ = 68685710407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68685710539) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32535994 + ... + 32538104.

It is an arithmetic number, because the mean of its divisors is an integer number (2933213184).

Almost surely, 2^68685710439 is an apocalyptic number.

68685710439 is a deficient number, since it is larger than the sum of its proper divisors (25177111449).

68685710439 is a wasteful number, since it uses less digits than its factorization.

68685710439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3759.

The product of its (nonzero) digits is 8709120, while the sum is 57.

The spelling of 68685710439 in words is "sixty-eight billion, six hundred eighty-five million, seven hundred ten thousand, four hundred thirty-nine".