421332436384 has 12 divisors (see below), whose sum is σ = 829498234194. Its totient is φ = 210666218176.

The previous prime is 421332436361. The next prime is 421332436417. The reversal of 421332436384 is 483634233124.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 419515290000 + 1817146384 = 647700^2 + 42628^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 421332436384.

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 as a sum of consecutive naturals, namely, 6583319287 + ... + 6583319350.

Almost surely, 2^421332436384 is an apocalyptic number.

It is an amenable number.

421332436384 is a deficient number, since it is larger than the sum of its proper divisors (408165797810).

421332436384 is a wasteful number, since it uses less digits than its factorization.

421332436384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13166638647 (or 13166638639 counting only the distinct ones).

The product of its digits is 995328, while the sum is 43.

The spelling of 421332436384 in words is "four hundred twenty-one billion, three hundred thirty-two million, four hundred thirty-six thousand, three hundred eighty-four".