8215260641280 has 2304 divisors, whose sum is σ = 37554030259200. Its totient is φ = 1672788049920.

The previous prime is 8215260641257. The next prime is 8215260641297. The reversal of 8215260641280 is 821460625128.

8215260641280 is a `hidden beast` number, since 8 + 2 + 1 + 526 + 0 + 6 + 41 + 2 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (2304).

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 191 ways as a sum of consecutive naturals, for example, 10154833516 + ... + 10154834324.

It is an arithmetic number, because the mean of its divisors is an integer number (16299492300).

Almost surely, 2^{8215260641280} is an apocalyptic number.

8215260641280 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 8215260641280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18777015129600).

8215260641280 is an abundant number, since it is smaller than the sum of its proper divisors (29338769617920).

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

8215260641280 is a wasteful number, since it uses less digits than its factorization.

8215260641280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922 (or 890 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 8215260641280 in words is "eight trillion, two hundred fifteen billion, two hundred sixty million, six hundred forty-one thousand, two hundred eighty".