8513040073 has 2 divisors, whose sum is σ = 8513040074. Its totient is φ = 8513040072.

The previous prime is 8513040059. The next prime is 8513040077. The reversal of 8513040073 is 3700403158.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7971454089 + 541585984 = 89283^2 + 23272^2 .

It is a cyclic number.

It is not a de Polignac number, because 8513040073 - 2²⁹ = 7976169161 is a prime.

It is not a weakly prime, because it can be changed into another prime (8513040077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4256520036 + 4256520037.

It is an arithmetic number, because the mean of its divisors is an integer number (4256520037).

Almost surely, 2^8513040073 is an apocalyptic number.

It is an amenable number.

8513040073 is a deficient number, since it is larger than the sum of its proper divisors (1).

8513040073 is an equidigital number, since it uses as much as digits as its factorization.

8513040073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 8513040073 is about 92266.1371956147. The cubic root of 8513040073 is about 2041.8706467561.

The spelling of 8513040073 in words is "eight billion, five hundred thirteen million, forty thousand, seventy-three".