6464895497 has 2 divisors, whose sum is σ = 6464895498. Its totient is φ = 6464895496.

The previous prime is 6464895487. The next prime is 6464895517. The reversal of 6464895497 is 7945984646.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5974671616 + 490223881 = 77296^2 + 22141^2 .

It is a cyclic number.

It is not a de Polignac number, because 6464895497 - 2⁶ = 6464895433 is a prime.

It is not a weakly prime, because it can be changed into another prime (6464895487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3232447748 + 3232447749.

It is an arithmetic number, because the mean of its divisors is an integer number (3232447749).

Almost surely, 2^6464895497 is an apocalyptic number.

It is an amenable number.

6464895497 is a deficient number, since it is larger than the sum of its proper divisors (1).

6464895497 is an equidigital number, since it uses as much as digits as its factorization.

6464895497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52254720, while the sum is 62.

The square root of 6464895497 is about 80404.5738562179. The cubic root of 6464895497 is about 1862.8898209738.

The spelling of 6464895497 in words is "six billion, four hundred sixty-four million, eight hundred ninety-five thousand, four hundred ninety-seven".