8263048721 has 2 divisors, whose sum is σ = 8263048722. Its totient is φ = 8263048720.

The previous prime is 8263048711. The next prime is 8263048723. The reversal of 8263048721 is 1278403628.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4248432400 + 4014616321 = 65180^2 + 63361^2 .

It is a cyclic number.

It is not a de Polignac number, because 8263048721 - 2³⁰ = 7189306897 is a prime.

Together with 8263048723, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8263048723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4131524360 + 4131524361.

It is an arithmetic number, because the mean of its divisors is an integer number (4131524361).

Almost surely, 2^8263048721 is an apocalyptic number.

It is an amenable number.

8263048721 is a deficient number, since it is larger than the sum of its proper divisors (1).

8263048721 is an equidigital number, since it uses as much as digits as its factorization.

8263048721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 8263048721 is about 90901.3130873256. The cubic root of 8263048721 is about 2021.6847625530.

The spelling of 8263048721 in words is "eight billion, two hundred sixty-three million, forty-eight thousand, seven hundred twenty-one".