85138479171695 has 16 divisors (see below), whose sum is σ = 106608751603200. Its totient is φ = 65149097216544.

The previous prime is 85138479171671. The next prime is 85138479171701. The reversal of 85138479171695 is 59617197483158.

It is a cyclic number.

It is not a de Polignac number, because 85138479171695 - 2¹⁶ = 85138479106159 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20801756 + ... + 24555854.

It is an arithmetic number, because the mean of its divisors is an integer number (6663046975200).

Almost surely, 2^{85138479171695} is an apocalyptic number.

85138479171695 is a deficient number, since it is larger than the sum of its proper divisors (21470272431505).

85138479171695 is a wasteful number, since it uses less digits than its factorization.

85138479171695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3951334.

The product of its digits is 457228800, while the sum is 74.

The spelling of 85138479171695 in words is "eighty-five trillion, one hundred thirty-eight billion, four hundred seventy-nine million, one hundred seventy-one thousand, six hundred ninety-five".