80480819 has 2 divisors, whose sum is σ = 80480820. Its totient is φ = 80480818.

The previous prime is 80480773. The next prime is 80480833. The reversal of 80480819 is 91808408.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80480819 is a prime.

It is a super-2 number, since 2×80480819² = 12954324453821522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80480419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40240409 + 40240410.

It is an arithmetic number, because the mean of its divisors is an integer number (40240410).

Almost surely, 2^80480819 is an apocalyptic number.

80480819 is a deficient number, since it is larger than the sum of its proper divisors (1).

80480819 is an equidigital number, since it uses as much as digits as its factorization.

80480819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 80480819 is about 8971.1102434426. The cubic root of 80480819 is about 431.7484586013.

The spelling of 80480819 in words is "eighty million, four hundred eighty thousand, eight hundred nineteen".