80345555287 has 2 divisors, whose sum is σ = 80345555288. Its totient is φ = 80345555286.

The previous prime is 80345555273. The next prime is 80345555309. The reversal of 80345555287 is 78255554308.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80345555287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80345555267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40172777643 + 40172777644.

It is an arithmetic number, because the mean of its divisors is an integer number (40172777644).

Almost surely, 2^80345555287 is an apocalyptic number.

80345555287 is a deficient number, since it is larger than the sum of its proper divisors (1).

80345555287 is an equidigital number, since it uses as much as digits as its factorization.

80345555287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720000, while the sum is 52.

The spelling of 80345555287 in words is "eighty billion, three hundred forty-five million, five hundred fifty-five thousand, two hundred eighty-seven".