6450630643 has 2 divisors, whose sum is σ = 6450630644. Its totient is φ = 6450630642.

The previous prime is 6450630611. The next prime is 6450630673. The reversal of 6450630643 is 3460360546.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6450630643 - 2⁵ = 6450630611 is a prime.

It is a super-2 number, since 2×6450630643² = 83221271384821186898, which contains 22 as substring.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (6450630673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3225315321 + 3225315322.

It is an arithmetic number, because the mean of its divisors is an integer number (3225315322).

Almost surely, 2^6450630643 is an apocalyptic number.

6450630643 is a deficient number, since it is larger than the sum of its proper divisors (1).

6450630643 is an equidigital number, since it uses as much as digits as its factorization.

6450630643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 37.

The square root of 6450630643 is about 80315.8181369025. The cubic root of 6450630643 is about 1861.5186505517.

The spelling of 6450630643 in words is "six billion, four hundred fifty million, six hundred thirty thousand, six hundred forty-three".