427220032018 has 32 divisors (see below), whose sum is σ = 714160062000. Its totient is φ = 190315754496.

The previous prime is 427220032009. The next prime is 427220032051. The reversal of 427220032018 is 810230022724.

It can be written as a sum of positive squares in 8 ways, for example, as 55640789689 + 371579242329 = 235883^2 + 609573^2 .

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2206030 + ... + 2391862.

Almost surely, 2^427220032018 is an apocalyptic number.

427220032018 is a deficient number, since it is larger than the sum of its proper divisors (286940029982).

427220032018 is a wasteful number, since it uses less digits than its factorization.

427220032018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188926.

The product of its (nonzero) digits is 10752, while the sum is 31.

The spelling of 427220032018 in words is "four hundred twenty-seven billion, two hundred twenty million, thirty-two thousand, eighteen".