6441275237 has 2 divisors, whose sum is σ = 6441275238. Its totient is φ = 6441275236.

The previous prime is 6441275227. The next prime is 6441275249. The reversal of 6441275237 is 7325721446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5019155716 + 1422119521 = 70846^2 + 37711^2 .

It is a cyclic number.

It is not a de Polignac number, because 6441275237 - 2¹⁴ = 6441258853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6441275194 and 6441275203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6441275227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3220637618 + 3220637619.

It is an arithmetic number, because the mean of its divisors is an integer number (3220637619).

Almost surely, 2^6441275237 is an apocalyptic number.

It is an amenable number.

6441275237 is a deficient number, since it is larger than the sum of its proper divisors (1).

6441275237 is an equidigital number, since it uses as much as digits as its factorization.

6441275237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 41.

The square root of 6441275237 is about 80257.5556380831. Note that the first 3 decimals coincide. The cubic root of 6441275237 is about 1860.6182895547.

The spelling of 6441275237 in words is "six billion, four hundred forty-one million, two hundred seventy-five thousand, two hundred thirty-seven".