80803027782791 has 2 divisors, whose sum is σ = 80803027782792. Its totient is φ = 80803027782790.

The previous prime is 80803027782779. The next prime is 80803027782817. The reversal of 80803027782791 is 19728772030808.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80803027782791 - 2¹⁴ = 80803027766407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80803027782721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40401513891395 + 40401513891396.

It is an arithmetic number, because the mean of its divisors is an integer number (40401513891396).

Almost surely, 2^{80803027782791} is an apocalyptic number.

80803027782791 is a deficient number, since it is larger than the sum of its proper divisors (1).

80803027782791 is an equidigital number, since it uses as much as digits as its factorization.

80803027782791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18966528, while the sum is 62.

The spelling of 80803027782791 in words is "eighty trillion, eight hundred three billion, twenty-seven million, seven hundred eighty-two thousand, seven hundred ninety-one".