4643941691 has 2 divisors, whose sum is σ = 4643941692. Its totient is φ = 4643941690.

The previous prime is 4643941633. The next prime is 4643941717. The reversal of 4643941691 is 1961493464.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4643941691 is a prime.

It is not a weakly prime, because it can be changed into another prime (4643946691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2321970845 + 2321970846.

It is an arithmetic number, because the mean of its divisors is an integer number (2321970846).

Almost surely, 2^4643941691 is an apocalyptic number.

4643941691 is a deficient number, since it is larger than the sum of its proper divisors (1).

4643941691 is an equidigital number, since it uses as much as digits as its factorization.

4643941691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 47.

The square root of 4643941691 is about 68146.4723298279. The cubic root of 4643941691 is about 1668.3823472891.

The spelling of 4643941691 in words is "four billion, six hundred forty-three million, nine hundred forty-one thousand, six hundred ninety-one".