80817609608 has 8 divisors (see below), whose sum is σ = 151533018030. Its totient is φ = 40408804800.

The previous prime is 80817609571. The next prime is 80817609617. The reversal of 80817609608 is 80690671808.

It can be written as a sum of positive squares in only one way, i.e., 69538744804 + 11278864804 = 263702^2 + 106202^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 80817609608.

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 as a sum of consecutive naturals, namely, 5051100593 + ... + 5051100608.

Almost surely, 2^80817609608 is an apocalyptic number.

It is an amenable number.

80817609608 is a deficient number, since it is larger than the sum of its proper divisors (70715408422).

80817609608 is a wasteful number, since it uses less digits than its factorization.

80817609608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10102201207 (or 10102201203 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 53.

The spelling of 80817609608 in words is "eighty billion, eight hundred seventeen million, six hundred nine thousand, six hundred eight".