80178738259 has 2 divisors, whose sum is σ = 80178738260. Its totient is φ = 80178738258.

The previous prime is 80178738251. The next prime is 80178738287. The reversal of 80178738259 is 95283787108.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80178738259 - 2³ = 80178738251 is a prime.

It is not a weakly prime, because it can be changed into another prime (80178738251) 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, 40089369129 + 40089369130.

It is an arithmetic number, because the mean of its divisors is an integer number (40089369130).

Almost surely, 2^80178738259 is an apocalyptic number.

80178738259 is a deficient number, since it is larger than the sum of its proper divisors (1).

80178738259 is an equidigital number, since it uses as much as digits as its factorization.

80178738259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6773760, while the sum is 58.

The spelling of 80178738259 in words is "eighty billion, one hundred seventy-eight million, seven hundred thirty-eight thousand, two hundred fifty-nine".