18208103008 has 24 divisors (see below), whose sum is σ = 36680861448. Its totient is φ = 8892328704.

The previous prime is 18208102961. The next prime is 18208103063. The reversal of 18208103008 is 80030180281.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6614941 + ... + 6617692.

It is an arithmetic number, because the mean of its divisors is an integer number (1528369227).

Almost surely, 2^18208103008 is an apocalyptic number.

It is an amenable number.

18208103008 is an abundant number, since it is smaller than the sum of its proper divisors (18472758440).

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

18208103008 is a wasteful number, since it uses less digits than its factorization.

18208103008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13232686 (or 13232678 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 31.

Adding to 18208103008 its reverse (80030180281), we get a palindrome (98238283289).

The spelling of 18208103008 in words is "eighteen billion, two hundred eight million, one hundred three thousand, eight".