2647127561 has 16 divisors (see below), whose sum is σ = 2924275200. Its totient is φ = 2380943808.

The previous prime is 2647127531. The next prime is 2647127599. The reversal of 2647127561 is 1657217462.

It is a cyclic number.

It is not a de Polignac number, because 2647127561 - 2¹⁴ = 2647111177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2647127531) 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, 130460 + ... + 149378.

It is an arithmetic number, because the mean of its divisors is an integer number (182767200).

Almost surely, 2^2647127561 is an apocalyptic number.

It is an amenable number.

2647127561 is a deficient number, since it is larger than the sum of its proper divisors (277147639).

2647127561 is a wasteful number, since it uses less digits than its factorization.

2647127561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19208.

The product of its digits is 141120, while the sum is 41.

The square root of 2647127561 is about 51450.2435465567. The cubic root of 2647127561 is about 1383.3273279009.

The spelling of 2647127561 in words is "two billion, six hundred forty-seven million, one hundred twenty-seven thousand, five hundred sixty-one".