9118506420 has 48 divisors (see below), whose sum is σ = 28368688320. Its totient is φ = 2431601568.

The previous prime is 9118506413. The next prime is 9118506421. The reversal of 9118506420 is 246058119.

9118506420 is a `hidden beast` number, since 9 + 1 + 1 + 8 + 5 + 0 + 642 + 0 = 666.

9118506420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9118506421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8442522 + ... + 8443601.

It is an arithmetic number, because the mean of its divisors is an integer number (591014340).

Almost surely, 2^9118506420 is an apocalyptic number.

9118506420 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

9118506420 is an abundant number, since it is smaller than the sum of its proper divisors (19250181900).

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

9118506420 is a wasteful number, since it uses less digits than its factorization.

9118506420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16886141 (or 16886133 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 9118506420 is about 95490.8708725604. The cubic root of 9118506420 is about 2089.1737933772.

The spelling of 9118506420 in words is "nine billion, one hundred eighteen million, five hundred six thousand, four hundred twenty".