421471520368 has 20 divisors (see below), whose sum is σ = 816710459328. Its totient is φ = 210707530880.

The previous prime is 421471520363. The next prime is 421471520413. The reversal of 421471520368 is 863025174124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421471520363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1640896 + ... + 1880287.

Almost surely, 2^421471520368 is an apocalyptic number.

It is an amenable number.

421471520368 is a deficient number, since it is larger than the sum of its proper divisors (395238938960).

421471520368 is a wasteful number, since it uses less digits than its factorization.

421471520368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3528672 (or 3528666 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 421471520368 in words is "four hundred twenty-one billion, four hundred seventy-one million, five hundred twenty thousand, three hundred sixty-eight".