18418826004 has 24 divisors (see below), whose sum is σ = 43202277888. Its totient is φ = 6107463360.

The previous prime is 18418826003. The next prime is 18418826009. The reversal of 18418826004 is 40062881481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18418826003) 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 in 7 ways as a sum of consecutive naturals, for example, 4015777 + ... + 4020360.

It is an arithmetic number, because the mean of its divisors is an integer number (1800094912).

Almost surely, 2^18418826004 is an apocalyptic number.

It is an amenable number.

18418826004 is an abundant number, since it is smaller than the sum of its proper divisors (24783451884).

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

18418826004 is a wasteful number, since it uses less digits than its factorization.

18418826004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8036335 (or 8036333 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 42.

The spelling of 18418826004 in words is "eighteen billion, four hundred eighteen million, eight hundred twenty-six thousand, four".