18600887668 has 12 divisors (see below), whose sum is σ = 35510785632. Its totient is φ = 8454948920.

The previous prime is 18600887633. The next prime is 18600887689. The reversal of 18600887668 is 86678800681.

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, 211373680 + ... + 211373767.

It is an arithmetic number, because the mean of its divisors is an integer number (2959232136).

Almost surely, 2^18600887668 is an apocalyptic number.

It is an amenable number.

18600887668 is a deficient number, since it is larger than the sum of its proper divisors (16909897964).

18600887668 is a wasteful number, since it uses less digits than its factorization.

18600887668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422747462 (or 422747460 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 58.

The spelling of 18600887668 in words is "eighteen billion, six hundred million, eight hundred eighty-seven thousand, six hundred sixty-eight".