8944750813 has 2 divisors, whose sum is σ = 8944750814. Its totient is φ = 8944750812.

The previous prime is 8944750769. The next prime is 8944750817. The reversal of 8944750813 is 3180574498.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8517997849 + 426752964 = 92293^2 + 20658^2 .

It is a cyclic number.

It is not a de Polignac number, because 8944750813 - 2¹³ = 8944742621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8944750817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4472375406 + 4472375407.

It is an arithmetic number, because the mean of its divisors is an integer number (4472375407).

Almost surely, 2^8944750813 is an apocalyptic number.

It is an amenable number.

8944750813 is a deficient number, since it is larger than the sum of its proper divisors (1).

8944750813 is an equidigital number, since it uses as much as digits as its factorization.

8944750813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680, while the sum is 49.

The square root of 8944750813 is about 94576.6927577826. The cubic root of 8944750813 is about 2075.8186782982.

The spelling of 8944750813 in words is "eight billion, nine hundred forty-four million, seven hundred fifty thousand, eight hundred thirteen".