18284985098 has 4 divisors (see below), whose sum is σ = 27427477650. Its totient is φ = 9142492548.

The previous prime is 18284985049. The next prime is 18284985101. The reversal of 18284985098 is 89058948281.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89058948281 = 3413 ⋅26094037.

It can be written as a sum of positive squares in only one way, i.e., 11160443449 + 7124541649 = 105643^2 + 84407^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18284985098.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4571246273 + ... + 4571246276.

Almost surely, 2^18284985098 is an apocalyptic number.

18284985098 is a deficient number, since it is larger than the sum of its proper divisors (9142492552).

18284985098 is an equidigital number, since it uses as much as digits as its factorization.

18284985098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9142492551.

The product of its (nonzero) digits is 13271040, while the sum is 62.

The spelling of 18284985098 in words is "eighteen billion, two hundred eighty-four million, nine hundred eighty-five thousand, ninety-eight".