420597085639 has 32 divisors (see below), whose sum is σ = 441383722560. Its totient is φ = 400480346112.

The previous prime is 420597085633. The next prime is 420597085673. The reversal of 420597085639 is 936580795024.

It is a cyclic number.

It is not a de Polignac number, because 420597085639 - 2¹¹ = 420597083591 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 (420597085633) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85190379 + ... + 85195315.

It is an arithmetic number, because the mean of its divisors is an integer number (13793241330).

Almost surely, 2^420597085639 is an apocalyptic number.

420597085639 is a deficient number, since it is larger than the sum of its proper divisors (20786636921).

420597085639 is a wasteful number, since it uses less digits than its factorization.

420597085639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5379.

The product of its (nonzero) digits is 16329600, while the sum is 58.

The spelling of 420597085639 in words is "four hundred twenty billion, five hundred ninety-seven million, eighty-five thousand, six hundred thirty-nine".