4155847643 has 2 divisors, whose sum is σ = 4155847644. Its totient is φ = 4155847642.

The previous prime is 4155847571. The next prime is 4155847679. The reversal of 4155847643 is 3467485514.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4155847643 - 2²⁰ = 4154799067 is a prime.

It is not a weakly prime, because it can be changed into another prime (4155847243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2077923821 + 2077923822.

It is an arithmetic number, because the mean of its divisors is an integer number (2077923822).

Almost surely, 2^4155847643 is an apocalyptic number.

4155847643 is a deficient number, since it is larger than the sum of its proper divisors (1).

4155847643 is an equidigital number, since it uses as much as digits as its factorization.

4155847643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1612800, while the sum is 47.

The square root of 4155847643 is about 64465.8641685660. The cubic root of 4155847643 is about 1607.7550134751.

The spelling of 4155847643 in words is "four billion, one hundred fifty-five million, eight hundred forty-seven thousand, six hundred forty-three".