420272237005 has 4 divisors (see below), whose sum is σ = 504326684412. Its totient is φ = 336217789600.

The previous prime is 420272237003. The next prime is 420272237009. The reversal of 420272237005 is 500732272024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51461376201 + 368810860804 = 226851^2 + 607298^2 .

It is not a de Polignac number, because 420272237005 - 2¹ = 420272237003 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 (420272237003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42027223696 + ... + 42027223705.

It is an arithmetic number, because the mean of its divisors is an integer number (126081671103).

Almost surely, 2^420272237005 is an apocalyptic number.

It is an amenable number.

420272237005 is a deficient number, since it is larger than the sum of its proper divisors (84054447407).

420272237005 is an equidigital number, since it uses as much as digits as its factorization.

420272237005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84054447406.

The product of its (nonzero) digits is 47040, while the sum is 34.

The spelling of 420272237005 in words is "four hundred twenty billion, two hundred seventy-two million, two hundred thirty-seven thousand, five".