8691122552 has 72 divisors (see below), whose sum is σ = 19588474080. Its totient is φ = 3604456800.

The previous prime is 8691122533. The next prime is 8691122569. The reversal of 8691122552 is 2552211968.

It is a super-2 number, since 2×8691122552² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 365177 + ... + 388247.

It is an arithmetic number, because the mean of its divisors is an integer number (272062140).

Almost surely, 2^8691122552 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 8691122552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9794237040).

8691122552 is an abundant number, since it is smaller than the sum of its proper divisors (10897351528).

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

8691122552 is a wasteful number, since it uses less digits than its factorization.

8691122552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23153 (or 23111 counting only the distinct ones).

The product of its digits is 86400, while the sum is 41.

The square root of 8691122552 is about 93226.1902686150. The cubic root of 8691122552 is about 2056.0103249846.

The spelling of 8691122552 in words is "eight billion, six hundred ninety-one million, one hundred twenty-two thousand, five hundred fifty-two".