6486044641 has 2 divisors, whose sum is σ = 6486044642. Its totient is φ = 6486044640.

The previous prime is 6486044633. The next prime is 6486044647. The reversal of 6486044641 is 1464406846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6432681616 + 53363025 = 80204^2 + 7305^2 .

It is a cyclic number.

It is not a de Polignac number, because 6486044641 - 2³ = 6486044633 is a prime.

It is not a weakly prime, because it can be changed into another prime (6486044647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3243022320 + 3243022321.

It is an arithmetic number, because the mean of its divisors is an integer number (3243022321).

Almost surely, 2^6486044641 is an apocalyptic number.

It is an amenable number.

6486044641 is a deficient number, since it is larger than the sum of its proper divisors (1).

6486044641 is an equidigital number, since it uses as much as digits as its factorization.

6486044641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 442368, while the sum is 43.

The square root of 6486044641 is about 80535.9835166865. The cubic root of 6486044641 is about 1864.9190180152.

The spelling of 6486044641 in words is "six billion, four hundred eighty-six million, forty-four thousand, six hundred forty-one".