18190608404 has 6 divisors (see below), whose sum is σ = 31833564714. Its totient is φ = 9095304200.

The previous prime is 18190608361. The next prime is 18190608467. The reversal of 18190608404 is 40480609181.

It can be written as a sum of positive squares in only one way, i.e., 15408256900 + 2782351504 = 124130^2 + 52748^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2273826047 + ... + 2273826054.

It is an arithmetic number, because the mean of its divisors is an integer number (5305594119).

Almost surely, 2^18190608404 is an apocalyptic number.

It is an amenable number.

18190608404 is a deficient number, since it is larger than the sum of its proper divisors (13642956310).

18190608404 is a wasteful number, since it uses less digits than its factorization.

18190608404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4547652105 (or 4547652103 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The spelling of 18190608404 in words is "eighteen billion, one hundred ninety million, six hundred eight thousand, four hundred four".