2636680693 has 4 divisors (see below), whose sum is σ = 2751319008. Its totient is φ = 2522042380.

The previous prime is 2636680621. The next prime is 2636680699. The reversal of 2636680693 is 3960866362.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2636680693 - 2¹⁷ = 2636549621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2636680699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57319123 + ... + 57319168.

It is an arithmetic number, because the mean of its divisors is an integer number (687829752).

Almost surely, 2^2636680693 is an apocalyptic number.

2636680693 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2636680693 is a deficient number, since it is larger than the sum of its proper divisors (114638315).

2636680693 is a wasteful number, since it uses less digits than its factorization.

2636680693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114638314.

The product of its (nonzero) digits is 1679616, while the sum is 49.

The square root of 2636680693 is about 51348.6191927300. The cubic root of 2636680693 is about 1381.5051652886.

The spelling of 2636680693 in words is "two billion, six hundred thirty-six million, six hundred eighty thousand, six hundred ninety-three".