80809726751712 has 1440 divisors, whose sum is σ = 309269769665472. Its totient is φ = 20196741906432.

The previous prime is 80809726751671. The next prime is 80809726751723. The reversal of 80809726751712 is 21715762790808.

80809726751712 is a `hidden beast` number, since 8 + 0 + 8 + 0 + 97 + 26 + 7 + 517 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 80809726751712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 5901528738 + ... + 5901542430.

Almost surely, 2^{80809726751712} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80809726751712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154634884832736).

80809726751712 is an abundant number, since it is smaller than the sum of its proper divisors (228460042913760).

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

80809726751712 is a wasteful number, since it uses less digits than its factorization.

80809726751712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13830 (or 13794 counting only the distinct ones).

The product of its (nonzero) digits is 23708160, while the sum is 63.

The spelling of 80809726751712 in words is "eighty trillion, eight hundred nine billion, seven hundred twenty-six million, seven hundred fifty-one thousand, seven hundred twelve".