80751539441 has 2 divisors, whose sum is σ = 80751539442. Its totient is φ = 80751539440.

The previous prime is 80751539417. The next prime is 80751539527. The reversal of 80751539441 is 14493515708.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63237663841 + 17513875600 = 251471^2 + 132340^2 .

It is a cyclic number.

It is not a de Polignac number, because 80751539441 - 2³⁴ = 63571670257 is a prime.

It is a super-2 number, since 2×80751539441² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80751533441) 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, 40375769720 + 40375769721.

It is an arithmetic number, because the mean of its divisors is an integer number (40375769721).

Almost surely, 2^80751539441 is an apocalyptic number.

It is an amenable number.

80751539441 is a deficient number, since it is larger than the sum of its proper divisors (1).

80751539441 is an equidigital number, since it uses as much as digits as its factorization.

80751539441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 80751539441 in words is "eighty billion, seven hundred fifty-one million, five hundred thirty-nine thousand, four hundred forty-one".