2127522817 has 12 divisors (see below), whose sum is σ = 2620455300. Its totient is φ = 1716320256.

The previous prime is 2127522799. The next prime is 2127522823. The reversal of 2127522817 is 7182257212.

It can be written as a sum of positive squares in 2 ways, for example, as 1576963521 + 550559296 = 39711^2 + 23464^2 .

It is not a de Polignac number, because 2127522817 - 2²³ = 2119134209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2127522847) 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 11 ways as a sum of consecutive naturals, for example, 1276192 + ... + 1277857.

It is an arithmetic number, because the mean of its divisors is an integer number (218371275).

Almost surely, 2^2127522817 is an apocalyptic number.

It is an amenable number.

2127522817 is a deficient number, since it is larger than the sum of its proper divisors (492932483).

2127522817 is a wasteful number, since it uses less digits than its factorization.

2127522817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554080 (or 2554073 counting only the distinct ones).

The product of its digits is 31360, while the sum is 37.

The square root of 2127522817 is about 46125.0779619937. The cubic root of 2127522817 is about 1286.1493684673.

The spelling of 2127522817 in words is "two billion, one hundred twenty-seven million, five hundred twenty-two thousand, eight hundred seventeen".