2685111992 has 8 divisors (see below), whose sum is σ = 5034585000. Its totient is φ = 1342555992.

The previous prime is 2685111991. The next prime is 2685111997. The reversal of 2685111992 is 2991115862.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2685111991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167819492 + ... + 167819507.

It is an arithmetic number, because the mean of its divisors is an integer number (629323125).

Almost surely, 2^2685111992 is an apocalyptic number.

It is an amenable number.

2685111992 is a deficient number, since it is larger than the sum of its proper divisors (2349473008).

2685111992 is a wasteful number, since it uses less digits than its factorization.

2685111992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335639005 (or 335639001 counting only the distinct ones).

The product of its digits is 77760, while the sum is 44.

The square root of 2685111992 is about 51818.0662703656. The cubic root of 2685111992 is about 1389.9125235221.

The spelling of 2685111992 in words is "two billion, six hundred eighty-five million, one hundred eleven thousand, nine hundred ninety-two".