8961231041280 has 1296 divisors, whose sum is σ = 36859249889280. Its totient is φ = 1967883780096.

The previous prime is 8961231041267. The next prime is 8961231041293. The reversal of 8961231041280 is 821401321698.

8961231041280 is a `hidden beast` number, since 8 + 9 + 6 + 12 + 310 + 41 + 280 = 666.

It is an interprime number because it is at equal distance from previous prime (8961231041267) and next prime (8961231041293).

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 51799023274 + ... + 51799023446.

Almost surely, 2^{8961231041280} is an apocalyptic number.

8961231041280 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 8961231041280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18429624944640).

8961231041280 is an abundant number, since it is smaller than the sum of its proper divisors (27898018848000).

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

8961231041280 is a wasteful number, since it uses less digits than its factorization.

8961231041280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The spelling of 8961231041280 in words is "eight trillion, nine hundred sixty-one billion, two hundred thirty-one million, forty-one thousand, two hundred eighty".