8541281280 has 704 divisors, whose sum is σ = 34051599360. Its totient is φ = 1783627776.

The previous prime is 8541281263. The next prime is 8541281291. The reversal of 8541281280 is 821821458.

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, 75586504 + ... + 75586616.

Almost surely, 2^8541281280 is an apocalyptic number.

8541281280 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 8541281280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17025799680).

8541281280 is an abundant number, since it is smaller than the sum of its proper divisors (25510318080).

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

8541281280 is a wasteful number, since it uses less digits than its factorization.

8541281280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 39.

The square root of 8541281280 is about 92419.0525811642. The cubic root of 8541281280 is about 2044.1260589404.

The spelling of 8541281280 in words is "eight billion, five hundred forty-one million, two hundred eighty-one thousand, two hundred eighty".