8815206349 has 2 divisors, whose sum is σ = 8815206350. Its totient is φ = 8815206348.

The previous prime is 8815206347. The next prime is 8815206359. The reversal of 8815206349 is 9436025188.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7978955625 + 836250724 = 89325^2 + 28918^2 .

It is a cyclic number.

It is not a de Polignac number, because 8815206349 - 2¹ = 8815206347 is a prime.

Together with 8815206347, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 8815206299 and 8815206308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8815206347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4407603174 + 4407603175.

It is an arithmetic number, because the mean of its divisors is an integer number (4407603175).

Almost surely, 2^8815206349 is an apocalyptic number.

It is an amenable number.

8815206349 is a deficient number, since it is larger than the sum of its proper divisors (1).

8815206349 is an equidigital number, since it uses as much as digits as its factorization.

8815206349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 8815206349 is about 93889.3303256552. The cubic root of 8815206349 is about 2065.7487293073.

The spelling of 8815206349 in words is "eight billion, eight hundred fifteen million, two hundred six thousand, three hundred forty-nine".