18606654473 has 8 divisors (see below), whose sum is σ = 20319084576. Its totient is φ = 16897710400.

The previous prime is 18606654463. The next prime is 18606654499. The reversal of 18606654473 is 37445660681.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18606654473 is a prime.

It is a super-2 number, since 2×18606654473² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18606654413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 860336 + ... + 881697.

It is an arithmetic number, because the mean of its divisors is an integer number (2539885572).

Almost surely, 2^18606654473 is an apocalyptic number.

It is an amenable number.

18606654473 is a deficient number, since it is larger than the sum of its proper divisors (1712430103).

18606654473 is a wasteful number, since it uses less digits than its factorization.

18606654473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743015.

The product of its (nonzero) digits is 2903040, while the sum is 50.

The spelling of 18606654473 in words is "eighteen billion, six hundred six million, six hundred fifty-four thousand, four hundred seventy-three".