2644246201 has 2 divisors, whose sum is σ = 2644246202. Its totient is φ = 2644246200.

The previous prime is 2644246193. The next prime is 2644246229. The reversal of 2644246201 is 1026424462.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2465221801 + 179024400 = 49651^2 + 13380^2 .

It is a cyclic number.

It is not a de Polignac number, because 2644246201 - 2³ = 2644246193 is a prime.

It is not a weakly prime, because it can be changed into another prime (2644246271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1322123100 + 1322123101.

It is an arithmetic number, because the mean of its divisors is an integer number (1322123101).

Almost surely, 2^2644246201 is an apocalyptic number.

It is an amenable number.

2644246201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2644246201 is an equidigital number, since it uses as much as digits as its factorization.

2644246201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 2644246201 is about 51422.2345002626. The cubic root of 2644246201 is about 1382.8252350981.

The spelling of 2644246201 in words is "two billion, six hundred forty-four million, two hundred forty-six thousand, two hundred one".