80421496459 has 2 divisors, whose sum is σ = 80421496460. Its totient is φ = 80421496458.

The previous prime is 80421496457. The next prime is 80421496489. The reversal of 80421496459 is 95469412408.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80421496459 - 2¹ = 80421496457 is a prime.

Together with 80421496457, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (80421496457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40210748229 + 40210748230.

It is an arithmetic number, because the mean of its divisors is an integer number (40210748230).

Almost surely, 2^80421496459 is an apocalyptic number.

80421496459 is a deficient number, since it is larger than the sum of its proper divisors (1).

80421496459 is an equidigital number, since it uses as much as digits as its factorization.

80421496459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2488320, while the sum is 52.

The spelling of 80421496459 in words is "eighty billion, four hundred twenty-one million, four hundred ninety-six thousand, four hundred fifty-nine".