8311748321 has 2 divisors, whose sum is σ = 8311748322. Its totient is φ = 8311748320.

The previous prime is 8311748317. The next prime is 8311748371. The reversal of 8311748321 is 1238471138.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7623210721 + 688537600 = 87311^2 + 26240^2 .

It is a cyclic number.

It is not a de Polignac number, because 8311748321 - 2² = 8311748317 is a prime.

It is not a weakly prime, because it can be changed into another prime (8311748371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4155874160 + 4155874161.

It is an arithmetic number, because the mean of its divisors is an integer number (4155874161).

Almost surely, 2^8311748321 is an apocalyptic number.

It is an amenable number.

8311748321 is a deficient number, since it is larger than the sum of its proper divisors (1).

8311748321 is an equidigital number, since it uses as much as digits as its factorization.

8311748321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 38.

The square root of 8311748321 is about 91168.7902793494. The cubic root of 8311748321 is about 2025.6486929311.

The spelling of 8311748321 in words is "eight billion, three hundred eleven million, seven hundred forty-eight thousand, three hundred twenty-one".