421243571163 has 16 divisors (see below), whose sum is σ = 575983296000. Its totient is φ = 273681357120.

The previous prime is 421243571129. The next prime is 421243571173. The reversal of 421243571163 is 361175342124.

It is not a de Polignac number, because 421243571163 - 2²⁶ = 421176462299 is a prime.

It is a super-2 number, since 2×421243571163² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (421243571173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1750263 + ... + 1976336.

It is an arithmetic number, because the mean of its divisors is an integer number (35998956000).

Almost surely, 2^421243571163 is an apocalyptic number.

421243571163 is a deficient number, since it is larger than the sum of its proper divisors (154739724837).

421243571163 is a wasteful number, since it uses less digits than its factorization.

421243571163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3727562.

The product of its digits is 120960, while the sum is 39.

The spelling of 421243571163 in words is "four hundred twenty-one billion, two hundred forty-three million, five hundred seventy-one thousand, one hundred sixty-three".