80868888681 has 64 divisors (see below), whose sum is σ = 131415736320. Its totient is φ = 43208121600.

The previous prime is 80868888677. The next prime is 80868888703. The reversal of 80868888681 is 18688886808.

It is not a de Polignac number, because 80868888681 - 2² = 80868888677 is a prime.

It is a super-3 number, since 3×80868888681³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80868888181) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9978531 + ... + 9986631.

It is an arithmetic number, because the mean of its divisors is an integer number (2053370880).

Almost surely, 2^80868888681 is an apocalyptic number.

It is an amenable number.

80868888681 is a deficient number, since it is larger than the sum of its proper divisors (50546847639).

80868888681 is a wasteful number, since it uses less digits than its factorization.

80868888681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8454.

The product of its (nonzero) digits is 75497472, while the sum is 69.

The spelling of 80868888681 in words is "eighty billion, eight hundred sixty-eight million, eight hundred eighty-eight thousand, six hundred eighty-one".