18546241128 has 32 divisors (see below), whose sum is σ = 46402800000. Its totient is φ = 6177120768.

The previous prime is 18546241121. The next prime is 18546241141. The reversal of 18546241128 is 82114264581.

It is a self number, because there is not a number n which added to its sum of digits gives 18546241128.

It is not an unprimeable number, because it can be changed into a prime (18546241121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279376 + ... + 339327.

It is an arithmetic number, because the mean of its divisors is an integer number (1450087500).

Almost surely, 2^18546241128 is an apocalyptic number.

It is an amenable number.

18546241128 is an abundant number, since it is smaller than the sum of its proper divisors (27856558872).

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

18546241128 is a wasteful number, since it uses less digits than its factorization.

18546241128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619961 (or 619957 counting only the distinct ones).

The product of its digits is 122880, while the sum is 42.

The spelling of 18546241128 in words is "eighteen billion, five hundred forty-six million, two hundred forty-one thousand, one hundred twenty-eight".