421983646876 has 36 divisors (see below), whose sum is σ = 812113720600. Its totient is φ = 191714925600.

The previous prime is 421983646811. The next prime is 421983646879. The reversal of 421983646876 is 678646389124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421983646879) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 756550 + ... + 1190098.

Almost surely, 2^421983646876 is an apocalyptic number.

It is an amenable number.

421983646876 is a deficient number, since it is larger than the sum of its proper divisors (390130073724).

421983646876 is a wasteful number, since it uses less digits than its factorization.

421983646876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435586 (or 435573 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 64.

The spelling of 421983646876 in words is "four hundred twenty-one billion, nine hundred eighty-three million, six hundred forty-six thousand, eight hundred seventy-six".