421063797353472 has 4224 divisors, whose sum is σ = 1719256762368000. Its totient is φ = 99199643811840.

The previous prime is 421063797353413. The next prime is 421063797353483. The reversal of 421063797353472 is 274353797360124.

421063797353472 is a `hidden beast` number, since 4 + 2 + 1 + 0 + 6 + 3 + 7 + 97 + 3 + 534 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 1272096064347 + ... + 1272096064677.

Almost surely, 2^{421063797353472} is an apocalyptic number.

421063797353472 is a gapful number since it is divisible by the number (42) 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 421063797353472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (859628381184000).

421063797353472 is an abundant number, since it is smaller than the sum of its proper divisors (1298192965014528).

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

421063797353472 is a wasteful number, since it uses less digits than its factorization.

421063797353472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524 (or 487 counting only the distinct ones).

The product of its (nonzero) digits is 160030080, while the sum is 63.

The spelling of 421063797353472 in words is "four hundred twenty-one trillion, sixty-three billion, seven hundred ninety-seven million, three hundred fifty-three thousand, four hundred seventy-two".