8422418556 has 30 divisors (see below), whose sum is σ = 22017866640. Its totient is φ = 2807472744.

The previous prime is 8422418503. The next prime is 8422418561. The reversal of 8422418556 is 6558142248.

8422418556 is a `hidden beast` number, since 84 + 2 + 2 + 4 + 18 + 556 = 666.

It is a super-3 number, since 3×8422418556³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12997236 + ... + 12997883.

It is an arithmetic number, because the mean of its divisors is an integer number (733928888).

Almost surely, 2^8422418556 is an apocalyptic number.

It is an amenable number.

8422418556 is an abundant number, since it is smaller than the sum of its proper divisors (13595448084).

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

8422418556 is a wasteful number, since it uses less digits than its factorization.

8422418556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25995135 (or 25995124 counting only the distinct ones).

The product of its digits is 614400, while the sum is 45.

The square root of 8422418556 is about 91773.7356545978. The cubic root of 8422418556 is about 2034.5995308934.

The spelling of 8422418556 in words is "eight billion, four hundred twenty-two million, four hundred eighteen thousand, five hundred fifty-six".