6456504641 has 2 divisors, whose sum is σ = 6456504642. Its totient is φ = 6456504640.

The previous prime is 6456504631. The next prime is 6456504667. The reversal of 6456504641 is 1464056546.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6125410225 + 331094416 = 78265^2 + 18196^2 .

It is a cyclic number.

It is not a de Polignac number, because 6456504641 - 2¹⁴ = 6456488257 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6456504601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3228252320 + 3228252321.

It is an arithmetic number, because the mean of its divisors is an integer number (3228252321).

Almost surely, 2^6456504641 is an apocalyptic number.

It is an amenable number.

6456504641 is a deficient number, since it is larger than the sum of its proper divisors (1).

6456504641 is an equidigital number, since it uses as much as digits as its factorization.

6456504641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 41.

The square root of 6456504641 is about 80352.3779424106. The cubic root of 6456504641 is about 1862.0835172591.

The spelling of 6456504641 in words is "six billion, four hundred fifty-six million, five hundred four thousand, six hundred forty-one".