6470617649 has 2 divisors, whose sum is σ = 6470617650. Its totient is φ = 6470617648.

The previous prime is 6470617633. The next prime is 6470617651. The reversal of 6470617649 is 9467160746.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6469306624 + 1311025 = 80432^2 + 1145^2 .

It is a cyclic number.

It is not a de Polignac number, because 6470617649 - 2⁴ = 6470617633 is a prime.

It is a Sophie Germain prime.

Together with 6470617651, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6470617597 and 6470617606.

It is not a weakly prime, because it can be changed into another prime (6470617619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3235308824 + 3235308825.

It is an arithmetic number, because the mean of its divisors is an integer number (3235308825).

Almost surely, 2^6470617649 is an apocalyptic number.

It is an amenable number.

6470617649 is a deficient number, since it is larger than the sum of its proper divisors (1).

6470617649 is an equidigital number, since it uses as much as digits as its factorization.

6470617649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The square root of 6470617649 is about 80440.1494839486. The cubic root of 6470617649 is about 1863.4392804996.

The spelling of 6470617649 in words is "six billion, four hundred seventy million, six hundred seventeen thousand, six hundred forty-nine".