421575546017 has 4 divisors (see below), whose sum is σ = 421579613616. Its totient is φ = 421571478420.

The previous prime is 421575546001. The next prime is 421575546047. The reversal of 421575546017 is 710645575124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 421575546017 - 2⁴ = 421575546001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421575546047) 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, 1874159 + ... + 2087012.

It is an arithmetic number, because the mean of its divisors is an integer number (105394903404).

Almost surely, 2^421575546017 is an apocalyptic number.

It is an amenable number.

421575546017 is a deficient number, since it is larger than the sum of its proper divisors (4067599).

421575546017 is a wasteful number, since it uses less digits than its factorization.

421575546017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4067598.

The product of its (nonzero) digits is 1176000, while the sum is 47.

The spelling of 421575546017 in words is "four hundred twenty-one billion, five hundred seventy-five million, five hundred forty-six thousand, seventeen".