4644345647 has 2 divisors, whose sum is σ = 4644345648. Its totient is φ = 4644345646.

The previous prime is 4644345551. The next prime is 4644345661. The reversal of 4644345647 is 7465434464.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4644345647 - 2¹⁰ = 4644344623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4644344647) 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 as a sum of consecutive naturals, namely, 2322172823 + 2322172824.

It is an arithmetic number, because the mean of its divisors is an integer number (2322172824).

Almost surely, 2^4644345647 is an apocalyptic number.

4644345647 is a deficient number, since it is larger than the sum of its proper divisors (1).

4644345647 is an equidigital number, since it uses as much as digits as its factorization.

4644345647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3870720, while the sum is 47.

The square root of 4644345647 is about 68149.4361458699. The cubic root of 4644345647 is about 1668.4307209598.

The spelling of 4644345647 in words is "four billion, six hundred forty-four million, three hundred forty-five thousand, six hundred forty-seven".