2085913905 has 8 divisors (see below), whose sum is σ = 3337462272. Its totient is φ = 1112487408.

The previous prime is 2085913877. The next prime is 2085913927. The reversal of 2085913905 is 5093195802.

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

It is not a de Polignac number, because 2085913905 - 2⁷ = 2085913777 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69530449 + ... + 69530478.

It is an arithmetic number, because the mean of its divisors is an integer number (417182784).

Almost surely, 2^2085913905 is an apocalyptic number.

It is an amenable number.

2085913905 is a deficient number, since it is larger than the sum of its proper divisors (1251548367).

2085913905 is a wasteful number, since it uses less digits than its factorization.

2085913905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139060935.

The product of its (nonzero) digits is 97200, while the sum is 42.

The square root of 2085913905 is about 45671.8064565001. The cubic root of 2085913905 is about 1277.7095074482.

The spelling of 2085913905 in words is "two billion, eighty-five million, nine hundred thirteen thousand, nine hundred five".