18404448002 has 16 divisors (see below), whose sum is σ = 30061713600. Its totient is φ = 8417278800.

The previous prime is 18404447977. The next prime is 18404448019. The reversal of 18404448002 is 20084440481.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8349374 + ... + 8351577.

It is an arithmetic number, because the mean of its divisors is an integer number (1878857100).

Almost surely, 2^18404448002 is an apocalyptic number.

18404448002 is a deficient number, since it is larger than the sum of its proper divisors (11657265598).

18404448002 is a wasteful number, since it uses less digits than its factorization.

18404448002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16701001.

The product of its (nonzero) digits is 32768, while the sum is 35.

Adding to 18404448002 its reverse (20084440481), we get a palindrome (38488888483).

The spelling of 18404448002 in words is "eighteen billion, four hundred four million, four hundred forty-eight thousand, two".