108085281591 has 16 divisors (see below), whose sum is σ = 165061793024. Its totient is φ = 61627863744.

The previous prime is 108085281583. The next prime is 108085281593. The reversal of 108085281591 is 195182580801.

It is not a de Polignac number, because 108085281591 - 2³ = 108085281583 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 108085281591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108085281593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5621605 + ... + 5640798.

It is an arithmetic number, because the mean of its divisors is an integer number (10316362064).

Almost surely, 2^108085281591 is an apocalyptic number.

108085281591 is a deficient number, since it is larger than the sum of its proper divisors (56976511433).

108085281591 is a wasteful number, since it uses less digits than its factorization.

108085281591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11262870.

The product of its (nonzero) digits is 230400, while the sum is 48.

The spelling of 108085281591 in words is "one hundred eight billion, eighty-five million, two hundred eighty-one thousand, five hundred ninety-one".