2638171159 has 16 divisors (see below), whose sum is σ = 2861913600. Its totient is φ = 2417469696.

The previous prime is 2638171157. The next prime is 2638171171. The reversal of 2638171159 is 9511718362.

It is a cyclic number.

It is not a de Polignac number, because 2638171159 - 2¹ = 2638171157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2638171153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1177162 + ... + 1179400.

It is an arithmetic number, because the mean of its divisors is an integer number (178869600).

Almost surely, 2^2638171159 is an apocalyptic number.

2638171159 is a deficient number, since it is larger than the sum of its proper divisors (223742441).

2638171159 is a wasteful number, since it uses less digits than its factorization.

2638171159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2874.

The product of its digits is 90720, while the sum is 43.

The square root of 2638171159 is about 51363.1303465823. The cubic root of 2638171159 is about 1381.7654292153.

The spelling of 2638171159 in words is "two billion, six hundred thirty-eight million, one hundred seventy-one thousand, one hundred fifty-nine".