2685072163 has 4 divisors (see below), whose sum is σ = 2698984648. Its totient is φ = 2671159680.

The previous prime is 2685072059. The next prime is 2685072199. The reversal of 2685072163 is 3612705862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3612705862 = 2 ⋅1806352931.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2685072163 is a prime.

It is a super-2 number, since 2×2685072163² = 14419225041034997138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2685078163) 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 in 3 ways as a sum of consecutive naturals, for example, 6955953 + ... + 6956338.

It is an arithmetic number, because the mean of its divisors is an integer number (674746162).

Almost surely, 2^2685072163 is an apocalyptic number.

2685072163 is a deficient number, since it is larger than the sum of its proper divisors (13912485).

2685072163 is a wasteful number, since it uses less digits than its factorization.

2685072163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13912484.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 2685072163 is about 51817.6819531712. The cubic root of 2685072163 is about 1389.9056511707.

The spelling of 2685072163 in words is "two billion, six hundred eighty-five million, seventy-two thousand, one hundred sixty-three".