6291650947 has 2 divisors, whose sum is σ = 6291650948. Its totient is φ = 6291650946.

The previous prime is 6291650933. The next prime is 6291650969. The reversal of 6291650947 is 7490561926.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6291650947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6291650947.

It is not a weakly prime, because it can be changed into another prime (6291650647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3145825473 + 3145825474.

It is an arithmetic number, because the mean of its divisors is an integer number (3145825474).

Almost surely, 2^6291650947 is an apocalyptic number.

6291650947 is a deficient number, since it is larger than the sum of its proper divisors (1).

6291650947 is an equidigital number, since it uses as much as digits as its factorization.

6291650947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 49.

The square root of 6291650947 is about 79319.9278050604. The cubic root of 6291650947 is about 1846.0985173304.

The spelling of 6291650947 in words is "six billion, two hundred ninety-one million, six hundred fifty thousand, nine hundred forty-seven".