2685445907 has 16 divisors (see below), whose sum is σ = 2807028000. Its totient is φ = 2565937920.

The previous prime is 2685445901. The next prime is 2685445913. The reversal of 2685445907 is 7095445862.

It is an interprime number because it is at equal distance from previous prime (2685445901) and next prime (2685445913).

It is a cyclic number.

It is not a de Polignac number, because 2685445907 - 2⁶ = 2685445843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2685445901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1278344 + ... + 1280442.

It is an arithmetic number, because the mean of its divisors is an integer number (175439250).

Almost surely, 2^2685445907 is an apocalyptic number.

2685445907 is a deficient number, since it is larger than the sum of its proper divisors (121582093).

2685445907 is a wasteful number, since it uses less digits than its factorization.

2685445907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2566.

The product of its (nonzero) digits is 2419200, while the sum is 50.

The square root of 2685445907 is about 51821.2881642284. The cubic root of 2685445907 is about 1389.9701366874.

The spelling of 2685445907 in words is "two billion, six hundred eighty-five million, four hundred forty-five thousand, nine hundred seven".