9473277581161 has 9 divisors (see below), whose sum is σ = 9655557406789. Its totient is φ = 9294376445536.

The previous prime is 9473277581129. The next prime is 9473277581213. The reversal of 9473277581161 is 1611857723749.

The square root of 9473277581161 is 3077869.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1118981036761 + 8354296544400 = 1057819^2 + 2890380^2 .

It is not a de Polignac number, because 9473277581161 - 2⁵ = 9473277581129 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9473277581161.

It is not an unprimeable number, because it can be changed into a prime (9473277561161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 163098021 + ... + 163156093.

Almost surely, 2^{9473277581161} is an apocalyptic number.

9473277581161 is the 3077869-th square number.

9473277581161 is the 1538935-th centered octagonal number.

It is an amenable number.

9473277581161 is a deficient number, since it is larger than the sum of its proper divisors (182279825628).

9473277581161 is an frugal number, since it uses more digits than its factorization.

9473277581161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116252 (or 58126 counting only the distinct ones).

The product of its digits is 17781120, while the sum is 61.

The spelling of 9473277581161 in words is "nine trillion, four hundred seventy-three billion, two hundred seventy-seven million, five hundred eighty-one thousand, one hundred sixty-one".