8681222452 has 48 divisors (see below), whose sum is σ = 17445536640. Its totient is φ = 3702771072.

The previous prime is 8681222393. The next prime is 8681222461. The reversal of 8681222452 is 2542221868.

It is a super-2 number, since 2×8681222452² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7942018 + ... + 7943110.

It is an arithmetic number, because the mean of its divisors is an integer number (363448680).

Almost surely, 2^8681222452 is an apocalyptic number.

It is an amenable number.

8681222452 is an abundant number, since it is smaller than the sum of its proper divisors (8764314188).

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

8681222452 is a wasteful number, since it uses less digits than its factorization.

8681222452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2200 (or 2198 counting only the distinct ones).

The product of its digits is 122880, while the sum is 40.

The square root of 8681222452 is about 93173.0779356355. The cubic root of 8681222452 is about 2055.2293579190.

The spelling of 8681222452 in words is "eight billion, six hundred eighty-one million, two hundred twenty-two thousand, four hundred fifty-two".