420545496909 has 8 divisors (see below), whose sum is σ = 560871527680. Its totient is φ = 280291565376.

The previous prime is 420545496893. The next prime is 420545496947. The reversal of 420545496909 is 909694545024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 420545496909 - 2⁴ = 420545496893 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420545496989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18011197 + ... + 18034530.

It is an arithmetic number, because the mean of its divisors is an integer number (70108940960).

Almost surely, 2^420545496909 is an apocalyptic number.

It is an amenable number.

420545496909 is a deficient number, since it is larger than the sum of its proper divisors (140326030771).

420545496909 is a wasteful number, since it uses less digits than its factorization.

420545496909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36049619.

The product of its (nonzero) digits is 13996800, while the sum is 57.

The spelling of 420545496909 in words is "four hundred twenty billion, five hundred forty-five million, four hundred ninety-six thousand, nine hundred nine".