8073522857 has 2 divisors, whose sum is σ = 8073522858. Its totient is φ = 8073522856.

The previous prime is 8073522811. The next prime is 8073522871. The reversal of 8073522857 is 7582253708.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7118465641 + 955057216 = 84371^2 + 30904^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8073522857 is a prime.

It is not a weakly prime, because it can be changed into another prime (8073527857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4036761428 + 4036761429.

It is an arithmetic number, because the mean of its divisors is an integer number (4036761429).

Almost surely, 2^8073522857 is an apocalyptic number.

It is an amenable number.

8073522857 is a deficient number, since it is larger than the sum of its proper divisors (1).

8073522857 is an equidigital number, since it uses as much as digits as its factorization.

8073522857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 940800, while the sum is 47.

The square root of 8073522857 is about 89852.7843586385. The cubic root of 8073522857 is about 2006.1082305182.

The spelling of 8073522857 in words is "eight billion, seventy-three million, five hundred twenty-two thousand, eight hundred fifty-seven".