80711756800 has 528 divisors, whose sum is σ = 229176224640. Its totient is φ = 27993047040.

The previous prime is 80711756779. The next prime is 80711756921. The reversal of 80711756800 is 865711708.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 355558287 + ... + 355558513.

It is an arithmetic number, because the mean of its divisors is an integer number (434045880).

Almost surely, 2^80711756800 is an apocalyptic number.

80711756800 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80711756800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114588112320).

80711756800 is an abundant number, since it is smaller than the sum of its proper divisors (148464467840).

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

80711756800 is a wasteful number, since it uses less digits than its factorization.

80711756800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 43.

The spelling of 80711756800 in words is "eighty billion, seven hundred eleven million, seven hundred fifty-six thousand, eight hundred".