727001452161 has 12 divisors (see below), whose sum is σ = 1050326147988. Its totient is φ = 484569355104.

The previous prime is 727001452159. The next prime is 727001452187. The reversal of 727001452161 is 161254100727.

727001452161 is a `hidden beast` number, since 7 + 2 + 70 + 0 + 1 + 4 + 521 + 61 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 536856617025 + 190144835136 = 732705^2 + 436056^2 .

It is not a de Polignac number, because 727001452161 - 2¹ = 727001452159 is a prime.

It is a super-2 number, since 2×727001452161² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (727001453161) 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 in 11 ways as a sum of consecutive naturals, for example, 8143110 + ... + 8231903.

It is an arithmetic number, because the mean of its divisors is an integer number (87527178999).

Almost surely, 2^727001452161 is an apocalyptic number.

It is an amenable number.

727001452161 is a deficient number, since it is larger than the sum of its proper divisors (323324695827).

727001452161 is a wasteful number, since it uses less digits than its factorization.

727001452161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16379952 (or 16379949 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

Adding to 727001452161 its reverse (161254100727), we get a palindrome (888255552888).

The spelling of 727001452161 in words is "seven hundred twenty-seven billion, one million, four hundred fifty-two thousand, one hundred sixty-one".