18620309606 has 16 divisors (see below), whose sum is σ = 27989478384. Its totient is φ = 9290502144.

The previous prime is 18620309581. The next prime is 18620309611. The reversal of 18620309606 is 60690302681.

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, 2840825 + ... + 2847371.

It is an arithmetic number, because the mean of its divisors is an integer number (1749342399).

Almost surely, 2^18620309606 is an apocalyptic number.

18620309606 is a deficient number, since it is larger than the sum of its proper divisors (9369168778).

18620309606 is a wasteful number, since it uses less digits than its factorization.

18620309606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9335.

The product of its (nonzero) digits is 93312, while the sum is 41.

The spelling of 18620309606 in words is "eighteen billion, six hundred twenty million, three hundred nine thousand, six hundred six".