2646272009 has 2 divisors, whose sum is σ = 2646272010. Its totient is φ = 2646272008.

The previous prime is 2646271963. The next prime is 2646272021. The reversal of 2646272009 is 9002726462.

It is a happy number.

2646272009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2071615225 + 574656784 = 45515^2 + 23972^2 .

It is a cyclic number.

It is not a de Polignac number, because 2646272009 - 2¹² = 2646267913 is a prime.

It is not a weakly prime, because it can be changed into another prime (2646272059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1323136004 + 1323136005.

It is an arithmetic number, because the mean of its divisors is an integer number (1323136005).

Almost surely, 2^2646272009 is an apocalyptic number.

It is an amenable number.

2646272009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2646272009 is an equidigital number, since it uses as much as digits as its factorization.

2646272009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 2646272009 is about 51441.9285116723. The cubic root of 2646272009 is about 1383.1782813135.

The spelling of 2646272009 in words is "two billion, six hundred forty-six million, two hundred seventy-two thousand, nine".