421143319975 has 24 divisors (see below), whose sum is σ = 604995885920. Its totient is φ = 284828037120.

The previous prime is 421143319901. The next prime is 421143320009. The reversal of 421143319975 is 579913341124.

It is a happy number.

It is not a de Polignac number, because 421143319975 - 2¹³ = 421143311783 is a prime.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 16470330 + ... + 16495879.

Almost surely, 2^421143319975 is an apocalyptic number.

421143319975 is a deficient number, since it is larger than the sum of its proper divisors (183852565945).

421143319975 is a wasteful number, since it uses less digits than its factorization.

421143319975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32966299 (or 32966294 counting only the distinct ones).

The product of its digits is 816480, while the sum is 49.

The spelling of 421143319975 in words is "four hundred twenty-one billion, one hundred forty-three million, three hundred nineteen thousand, nine hundred seventy-five".