8280816613 has 2 divisors, whose sum is σ = 8280816614. Its totient is φ = 8280816612.

The previous prime is 8280816553. The next prime is 8280816623. The reversal of 8280816613 is 3166180828.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8252268964 + 28547649 = 90842^2 + 5343^2 .

It is a cyclic number.

It is not a de Polignac number, because 8280816613 - 2²⁵ = 8247262181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8280816613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8280816623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4140408306 + 4140408307.

It is an arithmetic number, because the mean of its divisors is an integer number (4140408307).

Almost surely, 2^8280816613 is an apocalyptic number.

It is an amenable number.

8280816613 is a deficient number, since it is larger than the sum of its proper divisors (1).

8280816613 is an equidigital number, since it uses as much as digits as its factorization.

8280816613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 8280816613 is about 90998.9923735422. The cubic root of 8280816613 is about 2023.1327898537.

The spelling of 8280816613 in words is "eight billion, two hundred eighty million, eight hundred sixteen thousand, six hundred thirteen".