18550049053 has 8 divisors (see below), whose sum is σ = 18841880000. Its totient is φ = 18259237728.

The previous prime is 18550049051. The next prime is 18550049071. The reversal of 18550049053 is 35094005581.

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

It is a cyclic number.

It is not a de Polignac number, because 18550049053 - 2¹ = 18550049051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18550048997 and 18550049015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18550049051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218193 + ... + 291046.

It is an arithmetic number, because the mean of its divisors is an integer number (2355235000).

Almost surely, 2^18550049053 is an apocalyptic number.

It is an amenable number.

18550049053 is a deficient number, since it is larger than the sum of its proper divisors (291830947).

18550049053 is an equidigital number, since it uses as much as digits as its factorization.

18550049053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509811.

The product of its (nonzero) digits is 108000, while the sum is 40.

The spelling of 18550049053 in words is "eighteen billion, five hundred fifty million, forty-nine thousand, fifty-three".