85868128638085 has 8 divisors (see below), whose sum is σ = 104788224779040. Its totient is φ = 67530189301584.

The previous prime is 85868128638079. The next prime is 85868128638113. The reversal of 85868128638085 is 58083682186858.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85868128638085 - 2²⁹ = 85867591767173 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145539200787 + ... + 145539201376.

It is an arithmetic number, because the mean of its divisors is an integer number (13098528097380).

Almost surely, 2^{85868128638085} is an apocalyptic number.

It is an amenable number.

85868128638085 is a deficient number, since it is larger than the sum of its proper divisors (18920096140955).

85868128638085 is a wasteful number, since it uses less digits than its factorization.

85868128638085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291078402227.

The product of its (nonzero) digits is 1415577600, while the sum is 76.

The spelling of 85868128638085 in words is "eighty-five trillion, eight hundred sixty-eight billion, one hundred twenty-eight million, six hundred thirty-eight thousand, eighty-five".