80777350427 has 2 divisors, whose sum is σ = 80777350428. Its totient is φ = 80777350426.

The previous prime is 80777350351. The next prime is 80777350441. The reversal of 80777350427 is 72405377708.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80777350427 - 2¹⁸ = 80777088283 is a prime.

It is not a weakly prime, because it can be changed into another prime (80777350477) 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, 40388675213 + 40388675214.

It is an arithmetic number, because the mean of its divisors is an integer number (40388675214).

Almost surely, 2^80777350427 is an apocalyptic number.

80777350427 is a deficient number, since it is larger than the sum of its proper divisors (1).

80777350427 is an equidigital number, since it uses as much as digits as its factorization.

80777350427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304960, while the sum is 50.

The spelling of 80777350427 in words is "eighty billion, seven hundred seventy-seven million, three hundred fifty thousand, four hundred twenty-seven".