421067615668 has 48 divisors (see below), whose sum is σ = 844853151744. Its totient is φ = 179876037600.

The previous prime is 421067615653. The next prime is 421067615677. The reversal of 421067615668 is 866516760124.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11629393 + ... + 11665543.

It is an arithmetic number, because the mean of its divisors is an integer number (17601107328).

Almost surely, 2^421067615668 is an apocalyptic number.

It is an amenable number.

421067615668 is an abundant number, since it is smaller than the sum of its proper divisors (423785536076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421067615668 is a wasteful number, since it uses less digits than its factorization.

421067615668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37492 (or 37490 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 421067615668 in words is "four hundred twenty-one billion, sixty-seven million, six hundred fifteen thousand, six hundred sixty-eight".