8480017561 has 2 divisors, whose sum is σ = 8480017562. Its totient is φ = 8480017560.

The previous prime is 8480017523. The next prime is 8480017583. The reversal of 8480017561 is 1657100848.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5738971536 + 2741046025 = 75756^2 + 52355^2 .

It is a cyclic number.

It is not a de Polignac number, because 8480017561 - 2²⁹ = 7943146649 is a prime.

It is not a weakly prime, because it can be changed into another prime (8480017961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4240008780 + 4240008781.

It is an arithmetic number, because the mean of its divisors is an integer number (4240008781).

Almost surely, 2^8480017561 is an apocalyptic number.

It is an amenable number.

8480017561 is a deficient number, since it is larger than the sum of its proper divisors (1).

8480017561 is an equidigital number, since it uses as much as digits as its factorization.

8480017561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 8480017561 is about 92087.0108158583. The cubic root of 8480017561 is about 2039.2270525023.

The spelling of 8480017561 in words is "eight billion, four hundred eighty million, seventeen thousand, five hundred sixty-one".