6441261947 has 2 divisors, whose sum is σ = 6441261948. Its totient is φ = 6441261946.

The previous prime is 6441261907. The next prime is 6441261961. The reversal of 6441261947 is 7491621446.

6441261947 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6441261947 - 2⁸ = 6441261691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6441261898 and 6441261907.

It is not a weakly prime, because it can be changed into another prime (6441261907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3220630973 + 3220630974.

It is an arithmetic number, because the mean of its divisors is an integer number (3220630974).

Almost surely, 2^6441261947 is an apocalyptic number.

6441261947 is a deficient number, since it is larger than the sum of its proper divisors (1).

6441261947 is an equidigital number, since it uses as much as digits as its factorization.

6441261947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 44.

The square root of 6441261947 is about 80257.4728420974. The cubic root of 6441261947 is about 1860.6170099098.

The spelling of 6441261947 in words is "six billion, four hundred forty-one million, two hundred sixty-one thousand, nine hundred forty-seven".