8291229457280 has 512 divisors, whose sum is σ = 26534551173120. Its totient is φ = 2397988454400.

The previous prime is 8291229457267. The next prime is 8291229457309. The reversal of 8291229457280 is 827549221928.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 59411264 + ... + 59550656.

It is an arithmetic number, because the mean of its divisors is an integer number (51825295260).

Almost surely, 2^{8291229457280} is an apocalyptic number.

8291229457280 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 8291229457280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13267275586560).

8291229457280 is an abundant number, since it is smaller than the sum of its proper divisors (18243321715840).

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

8291229457280 is a wasteful number, since it uses less digits than its factorization.

8291229457280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139518 (or 139506 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 59.

The spelling of 8291229457280 in words is "eight trillion, two hundred ninety-one billion, two hundred twenty-nine million, four hundred fifty-seven thousand, two hundred eighty".