4671216643 has 2 divisors, whose sum is σ = 4671216644. Its totient is φ = 4671216642.

The previous prime is 4671216631. The next prime is 4671216661. The reversal of 4671216643 is 3466121764.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4671216643 - 2⁵ = 4671216611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4671216596 and 4671216605.

It is not a weakly prime, because it can be changed into another prime (4671216343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2335608321 + 2335608322.

It is an arithmetic number, because the mean of its divisors is an integer number (2335608322).

Almost surely, 2^4671216643 is an apocalyptic number.

4671216643 is a deficient number, since it is larger than the sum of its proper divisors (1).

4671216643 is an equidigital number, since it uses as much as digits as its factorization.

4671216643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 40.

The square root of 4671216643 is about 68346.2994096974. The cubic root of 4671216643 is about 1671.6422396937.

The spelling of 4671216643 in words is "four billion, six hundred seventy-one million, two hundred sixteen thousand, six hundred forty-three".