6442873727 has 2 divisors, whose sum is σ = 6442873728. Its totient is φ = 6442873726.

The previous prime is 6442873709. The next prime is 6442873777. The reversal of 6442873727 is 7273782446.

It is an a-pointer prime, because the next prime (6442873777) can be obtained adding 6442873727 to its sum of digits (50).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6442873727 - 2¹⁰ = 6442872703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6442873777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3221436863 + 3221436864.

It is an arithmetic number, because the mean of its divisors is an integer number (3221436864).

Almost surely, 2^6442873727 is an apocalyptic number.

6442873727 is a deficient number, since it is larger than the sum of its proper divisors (1).

6442873727 is an equidigital number, since it uses as much as digits as its factorization.

6442873727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3161088, while the sum is 50.

The square root of 6442873727 is about 80267.5135219723. The cubic root of 6442873727 is about 1860.7721893973.

The spelling of 6442873727 in words is "six billion, four hundred forty-two million, eight hundred seventy-three thousand, seven hundred twenty-seven".