8646649043 has 2 divisors, whose sum is σ = 8646649044. Its totient is φ = 8646649042.

The previous prime is 8646649009. The next prime is 8646649061. The reversal of 8646649043 is 3409466468.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8646649043 - 2³⁰ = 7572907219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8646648982 and 8646649000.

It is not a weakly prime, because it can be changed into another prime (8646649943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4323324521 + 4323324522.

It is an arithmetic number, because the mean of its divisors is an integer number (4323324522).

Almost surely, 2^8646649043 is an apocalyptic number.

8646649043 is a deficient number, since it is larger than the sum of its proper divisors (1).

8646649043 is an equidigital number, since it uses as much as digits as its factorization.

8646649043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2985984, while the sum is 50.

The square root of 8646649043 is about 92987.3595872041. The cubic root of 8646649043 is about 2052.4973762097.

The spelling of 8646649043 in words is "eight billion, six hundred forty-six million, six hundred forty-nine thousand, forty-three".