421535021530000 has 400 divisors, whose sum is σ = 1169891433406080. Its totient is φ = 144091008000000.

The previous prime is 421535021529977. The next prime is 421535021530057. The reversal of 421535021530000 is 35120535124.

It is a tau number, because it is divible by the number of its divisors (400).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 97150267831 + ... + 97150272169.

Almost surely, 2^{421535021530000} is an apocalyptic number.

421535021530000 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 421535021530000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (584945716703040).

421535021530000 is an abundant number, since it is smaller than the sum of its proper divisors (748356411876080).

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

421535021530000 is a wasteful number, since it uses less digits than its factorization.

421535021530000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8236 (or 8215 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 421535021530000 in words is "four hundred twenty-one trillion, five hundred thirty-five billion, twenty-one million, five hundred thirty thousand".