85544881775 has 12 divisors (see below), whose sum is σ = 106156853592. Its totient is φ = 68383518240.

The previous prime is 85544881753. The next prime is 85544881777. The reversal of 85544881775 is 57718844558.

It is not a de Polignac number, because 85544881775 - 2⁶ = 85544881711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85544881777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1276352 + ... + 1341701.

It is an arithmetic number, because the mean of its divisors is an integer number (8846404466).

Almost surely, 2^85544881775 is an apocalyptic number.

85544881775 is a deficient number, since it is larger than the sum of its proper divisors (20611971817).

85544881775 is a wasteful number, since it uses less digits than its factorization.

85544881775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2619370 (or 2619365 counting only the distinct ones).

The product of its digits is 50176000, while the sum is 62.

The spelling of 85544881775 in words is "eighty-five billion, five hundred forty-four million, eight hundred eighty-one thousand, seven hundred seventy-five".