4817691643 has 2 divisors, whose sum is σ = 4817691644. Its totient is φ = 4817691642.

The previous prime is 4817691631. The next prime is 4817691647. The reversal of 4817691643 is 3461967184.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4817691643 - 2²¹ = 4815594491 is a prime.

It is not a weakly prime, because it can be changed into another prime (4817691647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2408845821 + 2408845822.

It is an arithmetic number, because the mean of its divisors is an integer number (2408845822).

Almost surely, 2^4817691643 is an apocalyptic number.

4817691643 is a deficient number, since it is larger than the sum of its proper divisors (1).

4817691643 is an equidigital number, since it uses as much as digits as its factorization.

4817691643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 49.

The square root of 4817691643 is about 69409.5933066892. The cubic root of 4817691643 is about 1688.9352492768.

The spelling of 4817691643 in words is "four billion, eight hundred seventeen million, six hundred ninety-one thousand, six hundred forty-three".