1085898580591 has 24 divisors (see below), whose sum is σ = 1197945794304. Its totient is φ = 976192158240.

The previous prime is 1085898580469. The next prime is 1085898580639. The reversal of 1085898580591 is 1950858985801.

It is not a de Polignac number, because 1085898580591 - 2¹¹ = 1085898578543 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 (1085898520591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68343450 + ... + 68359336.

It is an arithmetic number, because the mean of its divisors is an integer number (49914408096).

Almost surely, 2^{1085898580591} is an apocalyptic number.

1085898580591 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1085898580591 is a deficient number, since it is larger than the sum of its proper divisors (112047213713).

1085898580591 is a wasteful number, since it uses less digits than its factorization.

1085898580591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16639 (or 16530 counting only the distinct ones).

The product of its (nonzero) digits is 41472000, while the sum is 67.

The spelling of 1085898580591 in words is "one trillion, eighty-five billion, eight hundred ninety-eight million, five hundred eighty thousand, five hundred ninety-one".