8269122720 has 192 divisors, whose sum is σ = 26886577536. Its totient is φ = 2134917120.

The previous prime is 8269122703. The next prime is 8269122731. The reversal of 8269122720 is 272219628.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2694627 + ... + 2697693.

It is an arithmetic number, because the mean of its divisors is an integer number (140034258).

Almost surely, 2^8269122720 is an apocalyptic number.

8269122720 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 8269122720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13443288768).

8269122720 is an abundant number, since it is smaller than the sum of its proper divisors (18617454816).

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

8269122720 is a wasteful number, since it uses less digits than its factorization.

8269122720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3263 (or 3255 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 8269122720 is about 90934.7168027701. The cubic root of 8269122720 is about 2022.1800076702.

The spelling of 8269122720 in words is "eight billion, two hundred sixty-nine million, one hundred twenty-two thousand, seven hundred twenty".