80118748421 has 2 divisors, whose sum is σ = 80118748422. Its totient is φ = 80118748420.

The previous prime is 80118748403. The next prime is 80118748441. The reversal of 80118748421 is 12484781108.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80111075521 + 7672900 = 283039^2 + 2770^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80118748421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80118748441) 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, 40059374210 + 40059374211.

It is an arithmetic number, because the mean of its divisors is an integer number (40059374211).

Almost surely, 2^80118748421 is an apocalyptic number.

It is an amenable number.

80118748421 is a deficient number, since it is larger than the sum of its proper divisors (1).

80118748421 is an equidigital number, since it uses as much as digits as its factorization.

80118748421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 114688, while the sum is 44.

The spelling of 80118748421 in words is "eighty billion, one hundred eighteen million, seven hundred forty-eight thousand, four hundred twenty-one".