18203617048 has 16 divisors (see below), whose sum is σ = 34133994000. Its totient is φ = 9101218656.

The previous prime is 18203617037. The next prime is 18203617093. The reversal of 18203617048 is 84071630281.

It is a self number, because there is not a number n which added to its sum of digits gives 18203617048.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75093 + ... + 205051.

It is an arithmetic number, because the mean of its divisors is an integer number (2133374625).

Almost surely, 2^18203617048 is an apocalyptic number.

It is an amenable number.

18203617048 is a deficient number, since it is larger than the sum of its proper divisors (15930376952).

18203617048 is a wasteful number, since it uses less digits than its factorization.

18203617048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147474 (or 147470 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 18203617048 in words is "eighteen billion, two hundred three million, six hundred seventeen thousand, forty-eight".