2685634171 has 4 divisors (see below), whose sum is σ = 2929782744. Its totient is φ = 2441485600.

The previous prime is 2685634141. The next prime is 2685634183. The reversal of 2685634171 is 1714365862.

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

It is a cyclic number.

It is not a de Polignac number, because 2685634171 - 2⁷ = 2685634043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2685634121) 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, 122074270 + ... + 122074291.

It is an arithmetic number, because the mean of its divisors is an integer number (732445686).

Almost surely, 2^2685634171 is an apocalyptic number.

2685634171 is a deficient number, since it is larger than the sum of its proper divisors (244148573).

2685634171 is a wasteful number, since it uses less digits than its factorization.

2685634171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244148572.

The product of its digits is 241920, while the sum is 43.

The square root of 2685634171 is about 51823.1046059574. The cubic root of 2685634171 is about 1390.0026173544.

The spelling of 2685634171 in words is "two billion, six hundred eighty-five million, six hundred thirty-four thousand, one hundred seventy-one".