2686171679 has 4 divisors (see below), whose sum is σ = 2802961776. Its totient is φ = 2569381584.

The previous prime is 2686171673. The next prime is 2686171681. The reversal of 2686171679 is 9761716862.

2686171679 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2686171679 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2686171679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2686171673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58395014 + ... + 58395059.

It is an arithmetic number, because the mean of its divisors is an integer number (700740444).

Almost surely, 2^2686171679 is an apocalyptic number.

2686171679 is a deficient number, since it is larger than the sum of its proper divisors (116790097).

2686171679 is a wasteful number, since it uses less digits than its factorization.

2686171679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116790096.

The product of its digits is 1524096, while the sum is 53.

The square root of 2686171679 is about 51828.2903345268. The cubic root of 2686171679 is about 1390.0953437696.

The spelling of 2686171679 in words is "two billion, six hundred eighty-six million, one hundred seventy-one thousand, six hundred seventy-nine".