9018551442 has 16 divisors (see below), whose sum is σ = 19098109152. Its totient is φ = 2829349440.

The previous prime is 9018551411. The next prime is 9018551513. The reversal of 9018551442 is 2441558109.

It is a super-2 number, since 2×9018551442² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9018551442.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44208484 + ... + 44208687.

It is an arithmetic number, because the mean of its divisors is an integer number (1193631822).

Almost surely, 2^9018551442 is an apocalyptic number.

9018551442 is an abundant number, since it is smaller than the sum of its proper divisors (10079557710).

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

9018551442 is a wasteful number, since it uses less digits than its factorization.

9018551442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88417193.

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 9018551442 is about 94966.0541562089. The cubic root of 9018551442 is about 2081.5120478998.

The spelling of 9018551442 in words is "nine billion, eighteen million, five hundred fifty-one thousand, four hundred forty-two".