420934437085 has 8 divisors (see below), whose sum is σ = 505199182176. Its totient is φ = 336695644560.

The previous prime is 420934437061. The next prime is 420934437089. The reversal of 420934437085 is 580734439024.

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

It is not a de Polignac number, because 420934437085 - 2²⁵ = 420900882653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420934437089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6452439 + ... + 6517348.

It is an arithmetic number, because the mean of its divisors is an integer number (63149897772).

Almost surely, 2^420934437085 is an apocalyptic number.

It is an amenable number.

420934437085 is a deficient number, since it is larger than the sum of its proper divisors (84264745091).

420934437085 is a wasteful number, since it uses less digits than its factorization.

420934437085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12976283.

The product of its (nonzero) digits is 2903040, while the sum is 49.

The spelling of 420934437085 in words is "four hundred twenty billion, nine hundred thirty-four million, four hundred thirty-seven thousand, eighty-five".