80144760881 has 2 divisors, whose sum is σ = 80144760882. Its totient is φ = 80144760880.

The previous prime is 80144760869. The next prime is 80144760889. The reversal of 80144760881 is 18806744108.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79132503025 + 1012257856 = 281305^2 + 31816^2 .

It is a cyclic number.

It is not a de Polignac number, because 80144760881 - 2¹⁰ = 80144759857 is a prime.

It is a super-2 number, since 2×80144760881² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80144760889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40072380440 + 40072380441.

It is an arithmetic number, because the mean of its divisors is an integer number (40072380441).

Almost surely, 2^80144760881 is an apocalyptic number.

It is an amenable number.

80144760881 is a deficient number, since it is larger than the sum of its proper divisors (1).

80144760881 is an equidigital number, since it uses as much as digits as its factorization.

80144760881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 344064, while the sum is 47.

The spelling of 80144760881 in words is "eighty billion, one hundred forty-four million, seven hundred sixty thousand, eight hundred eighty-one".