4638374647 has 2 divisors, whose sum is σ = 4638374648. Its totient is φ = 4638374646.

The previous prime is 4638374623. The next prime is 4638374711. The reversal of 4638374647 is 7464738364.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4638374647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4638374594 and 4638374603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4638372647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2319187323 + 2319187324.

It is an arithmetic number, because the mean of its divisors is an integer number (2319187324).

Almost surely, 2^4638374647 is an apocalyptic number.

4638374647 is a deficient number, since it is larger than the sum of its proper divisors (1).

4638374647 is an equidigital number, since it uses as much as digits as its factorization.

4638374647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8128512, while the sum is 52.

The square root of 4638374647 is about 68105.6139169158. The cubic root of 4638374647 is about 1667.7154086968.

The spelling of 4638374647 in words is "four billion, six hundred thirty-eight million, three hundred seventy-four thousand, six hundred forty-seven".