80994294720 has 336 divisors, whose sum is σ = 284968992672. Its totient is φ = 21106974720.

The previous prime is 80994294701. The next prime is 80994294737. The reversal of 80994294720 is 2749249908.

80994294720 is a `hidden beast` number, since 80 + 9 + 94 + 2 + 9 + 472 + 0 = 666.

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 47 ways as a sum of consecutive naturals, for example, 44722615 + ... + 44724425.

It is an arithmetic number, because the mean of its divisors is an integer number (848122002).

Almost surely, 2^80994294720 is an apocalyptic number.

80994294720 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 80994294720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142484496336).

80994294720 is an abundant number, since it is smaller than the sum of its proper divisors (203974697952).

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

80994294720 is a wasteful number, since it uses less digits than its factorization.

80994294720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2180 (or 2167 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 80994294720 in words is "eighty billion, nine hundred ninety-four million, two hundred ninety-four thousand, seven hundred twenty".