421563448504 has 64 divisors (see below), whose sum is σ = 934244720640. Its totient is φ = 176153832960.

The previous prime is 421563448477. The next prime is 421563448513. The reversal of 421563448504 is 405844365124.

It is a super-2 number, since 2×421563448504² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3212344 + ... + 3340999.

It is an arithmetic number, because the mean of its divisors is an integer number (14597573760).

Almost surely, 2^421563448504 is an apocalyptic number.

421563448504 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

421563448504 is an abundant number, since it is smaller than the sum of its proper divisors (512681272136).

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

421563448504 is a wasteful number, since it uses less digits than its factorization.

421563448504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6553420 (or 6553416 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 46.

The spelling of 421563448504 in words is "four hundred twenty-one billion, five hundred sixty-three million, four hundred forty-eight thousand, five hundred four".