6423271888321 has 2 divisors, whose sum is σ = 6423271888322. Its totient is φ = 6423271888320.

The previous prime is 6423271888309. The next prime is 6423271888357. The reversal of 6423271888321 is 1238881723246.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5720893801921 + 702378086400 = 2391839^2 + 838080^2 .

It is a cyclic number.

It is not a de Polignac number, because 6423271888321 - 2²³ = 6423263499713 is a prime.

It is not a weakly prime, because it can be changed into another prime (6423271888391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3211635944160 + 3211635944161.

It is an arithmetic number, because the mean of its divisors is an integer number (3211635944161).

Almost surely, 2^{6423271888321} is an apocalyptic number.

It is an amenable number.

6423271888321 is a deficient number, since it is larger than the sum of its proper divisors (1).

6423271888321 is an equidigital number, since it uses as much as digits as its factorization.

6423271888321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6193152, while the sum is 55.

The spelling of 6423271888321 in words is "six trillion, four hundred twenty-three billion, two hundred seventy-one million, eight hundred eighty-eight thousand, three hundred twenty-one".