7805480161 has 2 divisors, whose sum is σ = 7805480162. Its totient is φ = 7805480160.

The previous prime is 7805480153. The next prime is 7805480171. The reversal of 7805480161 is 1610845087.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6597500625 + 1207979536 = 81225^2 + 34756^2 .

It is a cyclic number.

It is not a de Polignac number, because 7805480161 - 2³ = 7805480153 is a prime.

It is not a weakly prime, because it can be changed into another prime (7805480131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3902740080 + 3902740081.

It is an arithmetic number, because the mean of its divisors is an integer number (3902740081).

Almost surely, 2^7805480161 is an apocalyptic number.

It is an amenable number.

7805480161 is a deficient number, since it is larger than the sum of its proper divisors (1).

7805480161 is an equidigital number, since it uses as much as digits as its factorization.

7805480161 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 7805480161 is about 88348.6285179346. The cubic root of 7805480161 is about 1983.6568275445.

The spelling of 7805480161 in words is "seven billion, eight hundred five million, four hundred eighty thousand, one hundred sixty-one".