421338084864 has 160 divisors (see below), whose sum is σ = 1172066125824. Its totient is φ = 134248857600.

The previous prime is 421338084829. The next prime is 421338084883. The reversal of 421338084864 is 468480833124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68921872 + ... + 68927984.

Almost surely, 2^421338084864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421338084864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (586033062912).

421338084864 is an abundant number, since it is smaller than the sum of its proper divisors (750728040960).

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

421338084864 is a wasteful number, since it uses less digits than its factorization.

421338084864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8108 (or 8092 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 51.

The spelling of 421338084864 in words is "four hundred twenty-one billion, three hundred thirty-eight million, eighty-four thousand, eight hundred sixty-four".