4547128349 has 2 divisors, whose sum is σ = 4547128350. Its totient is φ = 4547128348.

The previous prime is 4547128301. The next prime is 4547128361. The reversal of 4547128349 is 9438217454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2774128900 + 1772999449 = 52670^2 + 42107^2 .

It is a cyclic number.

It is not a de Polignac number, because 4547128349 - 2²⁰ = 4546079773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4547128379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2273564174 + 2273564175.

It is an arithmetic number, because the mean of its divisors is an integer number (2273564175).

Almost surely, 2^4547128349 is an apocalyptic number.

It is an amenable number.

4547128349 is a deficient number, since it is larger than the sum of its proper divisors (1).

4547128349 is an equidigital number, since it uses as much as digits as its factorization.

4547128349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 47.

The square root of 4547128349 is about 67432.3983631014. The cubic root of 4547128349 is about 1656.7071159505.

The spelling of 4547128349 in words is "four billion, five hundred forty-seven million, one hundred twenty-eight thousand, three hundred forty-nine".