418220522243 has 4 divisors (see below), whose sum is σ = 418508356128. Its totient is φ = 417932688360.

The previous prime is 418220522233. The next prime is 418220522257. The reversal of 418220522243 is 342225022814.

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

It is a cyclic number.

It is not a de Polignac number, because 418220522243 - 2²⁰ = 418219473667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (418220522233) 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, 143914763 + ... + 143917668.

It is an arithmetic number, because the mean of its divisors is an integer number (104627089032).

Almost surely, 2^418220522243 is an apocalyptic number.

418220522243 is a deficient number, since it is larger than the sum of its proper divisors (287833885).

418220522243 is a wasteful number, since it uses less digits than its factorization.

418220522243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287833884.

The product of its (nonzero) digits is 61440, while the sum is 35.

The spelling of 418220522243 in words is "four hundred eighteen billion, two hundred twenty million, five hundred twenty-two thousand, two hundred forty-three".