8072775280 has 80 divisors (see below), whose sum is σ = 19345011840. Its totient is φ = 3131138304.

The previous prime is 8072775259. The next prime is 8072775281. The reversal of 8072775280 is 825772708.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 8072775280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8072775281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469719 + ... + 486601.

It is an arithmetic number, because the mean of its divisors is an integer number (241812648).

Almost surely, 2^8072775280 is an apocalyptic number.

8072775280 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 8072775280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9672505920).

8072775280 is an abundant number, since it is smaller than the sum of its proper divisors (11272236560).

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

8072775280 is a wasteful number, since it uses less digits than its factorization.

8072775280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17078 (or 17072 counting only the distinct ones).

The product of its (nonzero) digits is 439040, while the sum is 46.

The square root of 8072775280 is about 89848.6242521275. The cubic root of 8072775280 is about 2006.0463093185.

The spelling of 8072775280 in words is "eight billion, seventy-two million, seven hundred seventy-five thousand, two hundred eighty".