4345947841 has 2 divisors, whose sum is σ = 4345947842. Its totient is φ = 4345947840.

The previous prime is 4345947817. The next prime is 4345947863. The reversal of 4345947841 is 1487495434.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3916256400 + 429691441 = 62580^2 + 20729^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4345947841 is a prime.

It is a super-2 number, since 2×4345947841² = 37774525273385122562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4345947041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2172973920 + 2172973921.

It is an arithmetic number, because the mean of its divisors is an integer number (2172973921).

Almost surely, 2^4345947841 is an apocalyptic number.

It is an amenable number.

4345947841 is a deficient number, since it is larger than the sum of its proper divisors (1).

4345947841 is an equidigital number, since it uses as much as digits as its factorization.

4345947841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1935360, while the sum is 49.

The square root of 4345947841 is about 65923.8032959264. The cubic root of 4345947841 is about 1631.9048628991.

The spelling of 4345947841 in words is "four billion, three hundred forty-five million, nine hundred forty-seven thousand, eight hundred forty-one".