421348581852 has 48 divisors (see below), whose sum is σ = 1077333261312. Its totient is φ = 127108817280.

The previous prime is 421348581851. The next prime is 421348581961. The reversal of 421348581852 is 258185843124.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 421348581795 and 421348581804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421348581851) 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 15 ways as a sum of consecutive naturals, for example, 7127593 + ... + 7186464.

It is an arithmetic number, because the mean of its divisors is an integer number (22444442944).

Almost surely, 2^421348581852 is an apocalyptic number.

It is an amenable number.

421348581852 is an abundant number, since it is smaller than the sum of its proper divisors (655984679460).

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

421348581852 is a wasteful number, since it uses less digits than its factorization.

421348581852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14314298 (or 14314296 counting only the distinct ones).

The product of its digits is 2457600, while the sum is 51.

The spelling of 421348581852 in words is "four hundred twenty-one billion, three hundred forty-eight million, five hundred eighty-one thousand, eight hundred fifty-two".