18426127028 has 12 divisors (see below), whose sum is σ = 32296032132. Its totient is φ = 9198689280.

The previous prime is 18426127009. The next prime is 18426127051. The reversal of 18426127028 is 82072162481.

It can be written as a sum of positive squares in 2 ways, for example, as 15057253264 + 3368873764 = 122708^2 + 58042^2 .

It is a super-2 number, since 2×18426127028² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 3590675 + ... + 3595802.

It is an arithmetic number, because the mean of its divisors is an integer number (2691336011).

Almost surely, 2^18426127028 is an apocalyptic number.

It is an amenable number.

18426127028 is a deficient number, since it is larger than the sum of its proper divisors (13869905104).

18426127028 is a wasteful number, since it uses less digits than its factorization.

18426127028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7187122 (or 7187120 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 41.

The spelling of 18426127028 in words is "eighteen billion, four hundred twenty-six million, one hundred twenty-seven thousand, twenty-eight".