420404212885 has 16 divisors (see below), whose sum is σ = 512513763840. Its totient is φ = 330998279040.

The previous prime is 420404212883. The next prime is 420404212967. The reversal of 420404212885 is 588212404024.

It is not a de Polignac number, because 420404212885 - 2¹ = 420404212883 is a prime.

It is a super-2 number, since 2×420404212885² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420404212883) 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 15 ways as a sum of consecutive naturals, for example, 1588272 + ... + 1833961.

It is an arithmetic number, because the mean of its divisors is an integer number (32032110240).

Almost surely, 2^420404212885 is an apocalyptic number.

It is an amenable number.

420404212885 is a deficient number, since it is larger than the sum of its proper divisors (92109550955).

420404212885 is a wasteful number, since it uses less digits than its factorization.

420404212885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3422628.

The product of its (nonzero) digits is 163840, while the sum is 40.

The spelling of 420404212885 in words is "four hundred twenty billion, four hundred four million, two hundred twelve thousand, eight hundred eighty-five".