2680118785 has 4 divisors (see below), whose sum is σ = 3216142548. Its totient is φ = 2144095024.

The previous prime is 2680118783. The next prime is 2680118803. The reversal of 2680118785 is 5878110862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 816987889 + 1863130896 = 28583^2 + 43164^2 .

It is a cyclic number.

It is not a de Polignac number, because 2680118785 - 2¹ = 2680118783 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2680118783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268011874 + ... + 268011883.

It is an arithmetic number, because the mean of its divisors is an integer number (804035637).

Almost surely, 2^2680118785 is an apocalyptic number.

It is an amenable number.

2680118785 is a deficient number, since it is larger than the sum of its proper divisors (536023763).

2680118785 is an equidigital number, since it uses as much as digits as its factorization.

2680118785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536023762.

The product of its (nonzero) digits is 215040, while the sum is 46.

The square root of 2680118785 is about 51769.8636756946. The cubic root of 2680118785 is about 1389.0504331837.

It can be divided in two parts, 26 and 80118785, that added together give a triangular number (80118811 = T₁₂₆₅₈).

The spelling of 2680118785 in words is "two billion, six hundred eighty million, one hundred eighteen thousand, seven hundred eighty-five".