18609455356 has 24 divisors (see below), whose sum is σ = 32946858000. Its totient is φ = 9196159104.

The previous prime is 18609455339. The next prime is 18609455363. The reversal of 18609455356 is 65355490681.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 907990 + ... + 928258.

It is an arithmetic number, because the mean of its divisors is an integer number (1372785750).

Almost surely, 2^18609455356 is an apocalyptic number.

It is an amenable number.

18609455356 is a deficient number, since it is larger than the sum of its proper divisors (14337402644).

18609455356 is a wasteful number, since it uses less digits than its factorization.

18609455356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22941 (or 22939 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 52.

The spelling of 18609455356 in words is "eighteen billion, six hundred nine million, four hundred fifty-five thousand, three hundred fifty-six".