8262881280 has 520 divisors, whose sum is σ = 31469756472. Its totient is φ = 2066743296.

The previous prime is 8262881257. The next prime is 8262881293. The reversal of 8262881280 is 821882628.

8262881280 is a `hidden beast` number, since 8 + 2 + 628 + 8 + 12 + 8 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3798503424 + 4464377856 = 61632^2 + 66816^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 28200814 + ... + 28201106.

Almost surely, 2^8262881280 is an apocalyptic number.

8262881280 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 8262881280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15734878236).

8262881280 is an abundant number, since it is smaller than the sum of its proper divisors (23206875192).

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

8262881280 is a wasteful number, since it uses less digits than its factorization.

8262881280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351 (or 320 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 45.

The square root of 8262881280 is about 90900.3920783623. The cubic root of 8262881280 is about 2021.6711067698.

The spelling of 8262881280 in words is "eight billion, two hundred sixty-two million, eight hundred eighty-one thousand, two hundred eighty".