80689912611800 has 48 divisors (see below), whose sum is σ = 187614513052200. Its totient is φ = 32274164403200.

The previous prime is 80689912611797. The next prime is 80689912611839. The reversal of 80689912611800 is 811621998608.

It is a self number, because there is not a number n which added to its sum of digits gives 80689912611800.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7657241 + ... + 14832840.

Almost surely, 2^{80689912611800} is an apocalyptic number.

It is an amenable number.

80689912611800 is an abundant number, since it is smaller than the sum of its proper divisors (106924600440400).

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

80689912611800 is a wasteful number, since it uses less digits than its factorization.

80689912611800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22508036 (or 22508027 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 59.

The spelling of 80689912611800 in words is "eighty trillion, six hundred eighty-nine billion, nine hundred twelve million, six hundred eleven thousand, eight hundred".