6221407963 has 2 divisors, whose sum is σ = 6221407964. Its totient is φ = 6221407962.

The previous prime is 6221407939. The next prime is 6221407967. The reversal of 6221407963 is 3697041226.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6221407963 is a prime.

It is not a weakly prime, because it can be changed into another prime (6221407967) 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, 3110703981 + 3110703982.

It is an arithmetic number, because the mean of its divisors is an integer number (3110703982).

Almost surely, 2^6221407963 is an apocalyptic number.

6221407963 is a deficient number, since it is larger than the sum of its proper divisors (1).

6221407963 is an equidigital number, since it uses as much as digits as its factorization.

6221407963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 6221407963 is about 78875.9022959484. The cubic root of 6221407963 is about 1839.2025493450.

The spelling of 6221407963 in words is "six billion, two hundred twenty-one million, four hundred seven thousand, nine hundred sixty-three".