2646163427 has 2 divisors, whose sum is σ = 2646163428. Its totient is φ = 2646163426.

The previous prime is 2646163423. The next prime is 2646163517. The reversal of 2646163427 is 7243616462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2646163427 - 2² = 2646163423 is a prime.

It is not a weakly prime, because it can be changed into another prime (2646163423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1323081713 + 1323081714.

It is an arithmetic number, because the mean of its divisors is an integer number (1323081714).

Almost surely, 2^2646163427 is an apocalyptic number.

2646163427 is a deficient number, since it is larger than the sum of its proper divisors (1).

2646163427 is an equidigital number, since it uses as much as digits as its factorization.

2646163427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 41.

The square root of 2646163427 is about 51440.8731166181. The cubic root of 2646163427 is about 1383.1593628352.

Adding to 2646163427 its reverse (7243616462), we get a palindrome (9889779889).

The spelling of 2646163427 in words is "two billion, six hundred forty-six million, one hundred sixty-three thousand, four hundred twenty-seven".