218272537473 has 8 divisors (see below), whose sum is σ = 291083976000. Its totient is φ = 145488061968.

The previous prime is 218272537471. The next prime is 218272537487. The reversal of 218272537473 is 374735272812.

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

It is not a de Polignac number, because 218272537473 - 2¹ = 218272537471 is a prime.

It is a super-2 number, since 2×218272537473² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (218272537471) by changing a digit.

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, 6721858 + ... + 6754251.

It is an arithmetic number, because the mean of its divisors is an integer number (36385497000).

Almost surely, 2^218272537473 is an apocalyptic number.

It is an amenable number.

218272537473 is a deficient number, since it is larger than the sum of its proper divisors (72811438527).

218272537473 is a wasteful number, since it uses less digits than its factorization.

218272537473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13481511.

The product of its digits is 3951360, while the sum is 51.

The spelling of 218272537473 in words is "two hundred eighteen billion, two hundred seventy-two million, five hundred thirty-seven thousand, four hundred seventy-three".