18598475368 has 24 divisors (see below), whose sum is σ = 38330537490. Its totient is φ = 8453852000.

The previous prime is 18598475353. The next prime is 18598475407. The reversal of 18598475368 is 86357489581.

It can be written as a sum of positive squares in only one way, i.e., 18491104324 + 107371044 = 135982^2 + 10362^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9605683 + ... + 9607618.

Almost surely, 2^18598475368 is an apocalyptic number.

It is an amenable number.

18598475368 is an abundant number, since it is smaller than the sum of its proper divisors (19732062122).

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

18598475368 is a wasteful number, since it uses less digits than its factorization.

18598475368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19213329 (or 19213314 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 64.

The spelling of 18598475368 in words is "eighteen billion, five hundred ninety-eight million, four hundred seventy-five thousand, three hundred sixty-eight".