4537821647 has 2 divisors, whose sum is σ = 4537821648. Its totient is φ = 4537821646.

The previous prime is 4537821581. The next prime is 4537821709. The reversal of 4537821647 is 7461287354.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4537821647 - 2²⁰ = 4536773071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4537811647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2268910823 + 2268910824.

It is an arithmetic number, because the mean of its divisors is an integer number (2268910824).

Almost surely, 2^4537821647 is an apocalyptic number.

4537821647 is a deficient number, since it is larger than the sum of its proper divisors (1).

4537821647 is an equidigital number, since it uses as much as digits as its factorization.

4537821647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1128960, while the sum is 47.

The square root of 4537821647 is about 67363.3553721903. The cubic root of 4537821647 is about 1655.5760716716.

The spelling of 4537821647 in words is "four billion, five hundred thirty-seven million, eight hundred twenty-one thousand, six hundred forty-seven".