2218473846473 has 4 divisors (see below), whose sum is σ = 2223286154628. Its totient is φ = 2213661538320.

The previous prime is 2218473846431. The next prime is 2218473846497. The reversal of 2218473846473 is 3746483748122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 227135168569 + 1991338677904 = 476587^2 + 1411148^2 .

It is a cyclic number.

It is not a de Polignac number, because 2218473846473 - 2²⁸ = 2218205411017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2218473846403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2406153386 + ... + 2406154307.

It is an arithmetic number, because the mean of its divisors is an integer number (555821538657).

Almost surely, 2^{2218473846473} is an apocalyptic number.

It is an amenable number.

2218473846473 is a deficient number, since it is larger than the sum of its proper divisors (4812308155).

2218473846473 is an equidigital number, since it uses as much as digits as its factorization.

2218473846473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4812308154.

The product of its digits is 43352064, while the sum is 59.

The spelling of 2218473846473 in words is "two trillion, two hundred eighteen billion, four hundred seventy-three million, eight hundred forty-six thousand, four hundred seventy-three".