80718851 has 2 divisors, whose sum is σ = 80718852. Its totient is φ = 80718850.

The previous prime is 80718811. The next prime is 80718857. The reversal of 80718851 is 15881708.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80718851 - 2¹⁴ = 80702467 is a prime.

It is not a weakly prime, because it can be changed into another prime (80718857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40359425 + 40359426.

It is an arithmetic number, because the mean of its divisors is an integer number (40359426).

Almost surely, 2^80718851 is an apocalyptic number.

80718851 is a deficient number, since it is larger than the sum of its proper divisors (1).

80718851 is an equidigital number, since it uses as much as digits as its factorization.

80718851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17920, while the sum is 38.

The square root of 80718851 is about 8984.3670339095. The cubic root of 80718851 is about 432.1736895165.

The spelling of 80718851 in words is "eighty million, seven hundred eighteen thousand, eight hundred fifty-one".