2085379808949 has 12 divisors (see below), whose sum is σ = 3043269046636. Its totient is φ = 1375920698112.

The previous prime is 2085379808921. The next prime is 2085379808999. The reversal of 2085379808949 is 9498089735802.

2085379808949 is a `hidden beast` number, since 2 + 0 + 8 + 537 + 9 + 8 + 0 + 89 + 4 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1408245023025 + 677134785924 = 1186695^2 + 822882^2 .

It is not a de Polignac number, because 2085379808949 - 2¹⁷ = 2085379677877 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 polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1194374734 + ... + 1194376479.

Almost surely, 2^{2085379808949} is an apocalyptic number.

It is an amenable number.

2085379808949 is a deficient number, since it is larger than the sum of its proper divisors (957889237687).

2085379808949 is a wasteful number, since it uses less digits than its factorization.

2085379808949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2388751316 (or 2388751313 counting only the distinct ones).

The product of its (nonzero) digits is 313528320, while the sum is 72.

The spelling of 2085379808949 in words is "two trillion, eighty-five billion, three hundred seventy-nine million, eight hundred eight thousand, nine hundred forty-nine".