80272529461 has 2 divisors, whose sum is σ = 80272529462. Its totient is φ = 80272529460.

The previous prime is 80272529417. The next prime is 80272529489. The reversal of 80272529461 is 16492527208.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76734540100 + 3537989361 = 277010^2 + 59481^2 .

It is a cyclic number.

It is not a de Polignac number, because 80272529461 - 2¹⁷ = 80272398389 is a prime.

It is a super-2 number, since 2×80272529461² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80272529261) 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, 40136264730 + 40136264731.

It is an arithmetic number, because the mean of its divisors is an integer number (40136264731).

Almost surely, 2^80272529461 is an apocalyptic number.

It is an amenable number.

80272529461 is a deficient number, since it is larger than the sum of its proper divisors (1).

80272529461 is an equidigital number, since it uses as much as digits as its factorization.

80272529461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 80272529461 in words is "eighty billion, two hundred seventy-two million, five hundred twenty-nine thousand, four hundred sixty-one".