421868547164 has 24 divisors (see below), whose sum is σ = 782842194288. Its totient is φ = 198235685120.

The previous prime is 421868547143. The next prime is 421868547169. The reversal of 421868547164 is 461745868124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421868547169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4495247 + ... + 4588134.

It is an arithmetic number, because the mean of its divisors is an integer number (32618424762).

Almost surely, 2^421868547164 is an apocalyptic number.

It is an amenable number.

421868547164 is a deficient number, since it is larger than the sum of its proper divisors (360973647124).

421868547164 is a wasteful number, since it uses less digits than its factorization.

421868547164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9084085 (or 9084083 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 56.

The spelling of 421868547164 in words is "four hundred twenty-one billion, eight hundred sixty-eight million, five hundred forty-seven thousand, one hundred sixty-four".