18208840100 has 72 divisors (see below), whose sum is σ = 44979496128. Its totient is φ = 6333500800.

The previous prime is 18208840093. The next prime is 18208840121. The reversal of 18208840100 is 104880281.

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 in 23 ways as a sum of consecutive naturals, for example, 334559 + ... + 385158.

It is an arithmetic number, because the mean of its divisors is an integer number (624715224).

Almost surely, 2^18208840100 is an apocalyptic number.

18208840100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18208840100 is an abundant number, since it is smaller than the sum of its proper divisors (26770656028).

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

18208840100 is a wasteful number, since it uses less digits than its factorization.

18208840100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719765 (or 719758 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 32.

The spelling of 18208840100 in words is "eighteen billion, two hundred eight million, eight hundred forty thousand, one hundred".