421650432000 has 1632 divisors, whose sum is σ = 1871316395520. Its totient is φ = 89181388800.

The previous prime is 421650431999. The next prime is 421650432029. The reversal of 421650432000 is 234056124.

421650432000 is a `hidden beast` number, since 4 + 2 + 1 + 650 + 4 + 3 + 2 + 0 + 0 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9805823979 + ... + 9805824021.

Almost surely, 2^421650432000 is an apocalyptic number.

421650432000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421650432000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (935658197760).

421650432000 is an abundant number, since it is smaller than the sum of its proper divisors (1449665963520).

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

421650432000 is an equidigital number, since it uses as much as digits as its factorization.

421650432000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 421650432000 its reverse (234056124), we get a palindrome (421884488124).

The spelling of 421650432000 in words is "four hundred twenty-one billion, six hundred fifty million, four hundred thirty-two thousand".