7963504649 has 2 divisors, whose sum is σ = 7963504650. Its totient is φ = 7963504648.

The previous prime is 7963504631. The next prime is 7963504651. The reversal of 7963504649 is 9464053697.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4355340025 + 3608164624 = 65995^2 + 60068^2 .

It is a cyclic number.

It is not a de Polignac number, because 7963504649 - 2²⁴ = 7946727433 is a prime.

It is a super-2 number, since 2×7963504649² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 7963504651, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7963504649.

It is not a weakly prime, because it can be changed into another prime (7963504849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3981752324 + 3981752325.

It is an arithmetic number, because the mean of its divisors is an integer number (3981752325).

Almost surely, 2^7963504649 is an apocalyptic number.

It is an amenable number.

7963504649 is a deficient number, since it is larger than the sum of its proper divisors (1).

7963504649 is an equidigital number, since it uses as much as digits as its factorization.

7963504649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4898880, while the sum is 53.

The square root of 7963504649 is about 89238.4706782899. The cubic root of 7963504649 is about 1996.9540843037.

The spelling of 7963504649 in words is "seven billion, nine hundred sixty-three million, five hundred four thousand, six hundred forty-nine".