421735557560 has 16 divisors (see below), whose sum is σ = 948905004600. Its totient is φ = 168694223008.

The previous prime is 421735557559. The next prime is 421735557571. The reversal of 421735557560 is 65755537124.

It is a junction number, because it is equal to n+sod(n) for n = 421735557499 and 421735557508.

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 3 ways as a sum of consecutive naturals, for example, 5271694430 + ... + 5271694509.

Almost surely, 2^421735557560 is an apocalyptic number.

421735557560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421735557560 is an abundant number, since it is smaller than the sum of its proper divisors (527169447040).

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

421735557560 is a wasteful number, since it uses less digits than its factorization.

421735557560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10543388950 (or 10543388946 counting only the distinct ones).

The product of its (nonzero) digits is 4410000, while the sum is 50.

The spelling of 421735557560 in words is "four hundred twenty-one billion, seven hundred thirty-five million, five hundred fifty-seven thousand, five hundred sixty".