421311580217 has 16 divisors (see below), whose sum is σ = 463423384320. Its totient is φ = 379847739600.

The previous prime is 421311580213. The next prime is 421311580229. The reversal of 421311580217 is 712085113124.

It is a cyclic number.

It is not a de Polignac number, because 421311580217 - 2² = 421311580213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421311580213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336134 + ... + 977552.

It is an arithmetic number, because the mean of its divisors is an integer number (28963961520).

Almost surely, 2^421311580217 is an apocalyptic number.

It is an amenable number.

421311580217 is a deficient number, since it is larger than the sum of its proper divisors (42111804103).

421311580217 is a wasteful number, since it uses less digits than its factorization.

421311580217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641924.

The product of its (nonzero) digits is 13440, while the sum is 35.

The spelling of 421311580217 in words is "four hundred twenty-one billion, three hundred eleven million, five hundred eighty thousand, two hundred seventeen".