2081609576894 has 8 divisors (see below), whose sum is σ = 3124051714728. Its totient is φ = 1040259005320.

The previous prime is 2081609576869. The next prime is 2081609576923. The reversal of 2081609576894 is 4986759061802.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2081609576894.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 272886797 + ... + 272894424.

It is an arithmetic number, because the mean of its divisors is an integer number (390506464341).

Almost surely, 2^{2081609576894} is an apocalyptic number.

2081609576894 is a deficient number, since it is larger than the sum of its proper divisors (1042442137834).

2081609576894 is a wasteful number, since it uses less digits than its factorization.

2081609576894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545783130.

The product of its (nonzero) digits is 52254720, while the sum is 65.

The spelling of 2081609576894 in words is "two trillion, eighty-one billion, six hundred nine million, five hundred seventy-six thousand, eight hundred ninety-four".