18448428122 has 4 divisors (see below), whose sum is σ = 27672642186. Its totient is φ = 9224214060.

The previous prime is 18448428121. The next prime is 18448428127. The reversal of 18448428122 is 22182484481.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16861282201 + 1587145921 = 129851^2 + 39839^2 .

It is not an unprimeable number, because it can be changed into a prime (18448428121) 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 as a sum of consecutive naturals, namely, 4612107029 + ... + 4612107032.

Almost surely, 2^18448428122 is an apocalyptic number.

18448428122 is a deficient number, since it is larger than the sum of its proper divisors (9224214064).

18448428122 is an equidigital number, since it uses as much as digits as its factorization.

18448428122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9224214063.

The product of its digits is 262144, while the sum is 44.

The spelling of 18448428122 in words is "eighteen billion, four hundred forty-eight million, four hundred twenty-eight thousand, one hundred twenty-two".