80647873677808 has 20 divisors (see below), whose sum is σ = 156255638608440. Its totient is φ = 40323837907904.

The previous prime is 80647873677779. The next prime is 80647873677821. The reversal of 80647873677808 is 80877637874608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 779763 + ... + 12724141.

It is an arithmetic number, because the mean of its divisors is an integer number (7812781930422).

Almost surely, 2^{80647873677808} is an apocalyptic number.

It is an amenable number.

80647873677808 is a deficient number, since it is larger than the sum of its proper divisors (75607764930632).

80647873677808 is a wasteful number, since it uses less digits than its factorization.

80647873677808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12366384 (or 12366378 counting only the distinct ones).

The product of its (nonzero) digits is 4248502272, while the sum is 79.

The spelling of 80647873677808 in words is "eighty trillion, six hundred forty-seven billion, eight hundred seventy-three million, six hundred seventy-seven thousand, eight hundred eight".