420210744861 has 8 divisors (see below), whose sum is σ = 565517264544. Its totient is φ = 277522360880.

The previous prime is 420210744859. The next prime is 420210744881. The reversal of 420210744861 is 168447012024.

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

It is a cyclic number.

It is not a de Polignac number, because 420210744861 - 2¹ = 420210744859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420210744881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 654533550 + ... + 654534191.

It is an arithmetic number, because the mean of its divisors is an integer number (70689658068).

Almost surely, 2^420210744861 is an apocalyptic number.

It is an amenable number.

420210744861 is a deficient number, since it is larger than the sum of its proper divisors (145306519683).

420210744861 is a wasteful number, since it uses less digits than its factorization.

420210744861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309067851.

The product of its (nonzero) digits is 86016, while the sum is 39.

Adding to 420210744861 its reverse (168447012024), we get a palindrome (588657756885).

The spelling of 420210744861 in words is "four hundred twenty billion, two hundred ten million, seven hundred forty-four thousand, eight hundred sixty-one".