8641197082776 has 128 divisors (see below), whose sum is σ = 22310042388480. Its totient is φ = 2787794620416.

The previous prime is 8641197082751. The next prime is 8641197082853. The reversal of 8641197082776 is 6772807911468.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37764825 + ... + 37992951.

It is an arithmetic number, because the mean of its divisors is an integer number (174297206160).

Almost surely, 2^{8641197082776} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8641197082776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11155021194240).

8641197082776 is an abundant number, since it is smaller than the sum of its proper divisors (13668845305704).

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

8641197082776 is a wasteful number, since it uses less digits than its factorization.

8641197082776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228593 (or 228589 counting only the distinct ones).

The product of its (nonzero) digits is 56899584, while the sum is 66.

The spelling of 8641197082776 in words is "eight trillion, six hundred forty-one billion, one hundred ninety-seven million, eighty-two thousand, seven hundred seventy-six".