80688968916 has 48 divisors (see below), whose sum is σ = 191089416000. Its totient is φ = 26496018432.

The previous prime is 80688968909. The next prime is 80688968917. The reversal of 80688968916 is 61986988608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80688968917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231540 + ... + 463668.

It is an arithmetic number, because the mean of its divisors is an integer number (3981029500).

Almost surely, 2^80688968916 is an apocalyptic number.

It is an amenable number.

80688968916 is an abundant number, since it is smaller than the sum of its proper divisors (110400447084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80688968916 is a wasteful number, since it uses less digits than its factorization.

80688968916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232568 (or 232566 counting only the distinct ones).

The product of its (nonzero) digits is 71663616, while the sum is 69.

The spelling of 80688968916 in words is "eighty billion, six hundred eighty-eight million, nine hundred sixty-eight thousand, nine hundred sixteen".