80881728043 has 2 divisors, whose sum is σ = 80881728044. Its totient is φ = 80881728042.

The previous prime is 80881727989. The next prime is 80881728131. The reversal of 80881728043 is 34082718808.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80881728043 - 2²¹ = 80879630891 is a prime.

It is not a weakly prime, because it can be changed into another prime (80881728143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40440864021 + 40440864022.

It is an arithmetic number, because the mean of its divisors is an integer number (40440864022).

Almost surely, 2^80881728043 is an apocalyptic number.

80881728043 is a deficient number, since it is larger than the sum of its proper divisors (1).

80881728043 is an equidigital number, since it uses as much as digits as its factorization.

80881728043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 688128, while the sum is 49.

The spelling of 80881728043 in words is "eighty billion, eight hundred eighty-one million, seven hundred twenty-eight thousand, forty-three".