18650604044 has 24 divisors (see below), whose sum is σ = 34537321728. Its totient is φ = 8794219280.

The previous prime is 18650603987. The next prime is 18650604073. The reversal of 18650604044 is 44040605681.

It is a junction number, because it is equal to n+sod(n) for n = 18650603989 and 18650604007.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1421102 + ... + 1434165.

It is an arithmetic number, because the mean of its divisors is an integer number (1439055072).

Almost surely, 2^18650604044 is an apocalyptic number.

It is an amenable number.

18650604044 is a deficient number, since it is larger than the sum of its proper divisors (15886717684).

18650604044 is a wasteful number, since it uses less digits than its factorization.

18650604044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2855365 (or 2855363 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The spelling of 18650604044 in words is "eighteen billion, six hundred fifty million, six hundred four thousand, forty-four".