8217022077628 has 72 divisors (see below), whose sum is σ = 17804934228480. Its totient is φ = 3248956526400.

The previous prime is 8217022077623. The next prime is 8217022077653. The reversal of 8217022077628 is 8267702207128.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8217022077623) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8429353 + ... + 9353503.

Almost surely, 2^{8217022077628} 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 8217022077628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8902467114240).

8217022077628 is an abundant number, since it is smaller than the sum of its proper divisors (9587912150852).

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

8217022077628 is a wasteful number, since it uses less digits than its factorization.

8217022077628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926067 (or 926052 counting only the distinct ones).

The product of its (nonzero) digits is 2107392, while the sum is 52.

The spelling of 8217022077628 in words is "eight trillion, two hundred seventeen billion, twenty-two million, seventy-seven thousand, six hundred twenty-eight".