80727280808 has 16 divisors (see below), whose sum is σ = 152862303060. Its totient is φ = 39964000000.

The previous prime is 80727280787. The next prime is 80727280817. The reversal of 80727280808 is 80808272708.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 73255752964 + 7471527844 = 270658^2 + 86438^2 .

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 49954193 + ... + 49955808.

Almost surely, 2^80727280808 is an apocalyptic number.

It is an amenable number.

80727280808 is a deficient number, since it is larger than the sum of its proper divisors (72135022252).

80727280808 is a wasteful number, since it uses less digits than its factorization.

80727280808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99910108 (or 99910104 counting only the distinct ones).

The product of its (nonzero) digits is 802816, while the sum is 50.

The spelling of 80727280808 in words is "eighty billion, seven hundred twenty-seven million, two hundred eighty thousand, eight hundred eight".