2085379808989 has 8 divisors (see below), whose sum is σ = 2157444460800. Its totient is φ = 2013614803200.

The previous prime is 2085379808921. The next prime is 2085379808999. The reversal of 2085379808989 is 9898089735802.

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

It is a cyclic number.

It is not a de Polignac number, because 2085379808989 - 2⁷ = 2085379808861 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 (2085379808999) 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 7 ways as a sum of consecutive naturals, for example, 74897347 + ... + 74925184.

It is an arithmetic number, because the mean of its divisors is an integer number (269680557600).

Almost surely, 2^{2085379808989} is an apocalyptic number.

It is an amenable number.

2085379808989 is a deficient number, since it is larger than the sum of its proper divisors (72064651811).

2085379808989 is a wasteful number, since it uses less digits than its factorization.

2085379808989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149823011.

The product of its (nonzero) digits is 627056640, while the sum is 76.

The spelling of 2085379808989 in words is "two trillion, eighty-five billion, three hundred seventy-nine million, eight hundred eight thousand, nine hundred eighty-nine".