18547970223 has 8 divisors (see below), whose sum is σ = 24776341936. Its totient is φ = 12342456000.

The previous prime is 18547970213. The next prime is 18547970239. The reversal of 18547970223 is 32207974581.

It is a happy number.

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

It is not a de Polignac number, because 18547970223 - 2¹⁴ = 18547953839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18547970213) 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, 5712478 + ... + 5715723.

It is an arithmetic number, because the mean of its divisors is an integer number (3097042742).

Almost surely, 2^18547970223 is an apocalyptic number.

18547970223 is a deficient number, since it is larger than the sum of its proper divisors (6228371713).

18547970223 is a wasteful number, since it uses less digits than its factorization.

18547970223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11428745.

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 18547970223 in words is "eighteen billion, five hundred forty-seven million, nine hundred seventy thousand, two hundred twenty-three".