4643222661823 has 2 divisors, whose sum is σ = 4643222661824. Its totient is φ = 4643222661822.

The previous prime is 4643222661811. The next prime is 4643222661839. The reversal of 4643222661823 is 3281662223464.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4643222661823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4643222664823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2321611330911 + 2321611330912.

It is an arithmetic number, because the mean of its divisors is an integer number (2321611330912).

Almost surely, 2^{4643222661823} is an apocalyptic number.

4643222661823 is a deficient number, since it is larger than the sum of its proper divisors (1).

4643222661823 is an equidigital number, since it uses as much as digits as its factorization.

4643222661823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3981312, while the sum is 49.

The spelling of 4643222661823 in words is "four trillion, six hundred forty-three billion, two hundred twenty-two million, six hundred sixty-one thousand, eight hundred twenty-three".