420710848109 has 4 divisors (see below), whose sum is σ = 425437936380. Its totient is φ = 415983759840.

The previous prime is 420710848097. The next prime is 420710848139. The reversal of 420710848109 is 901848017024.

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 131243175625 + 289467672484 = 362275^2 + 538022^2 .

It is a cyclic number.

It is not a de Polignac number, because 420710848109 - 2²⁸ = 420442412653 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420710848109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420710848139) 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 3 ways as a sum of consecutive naturals, for example, 2363544002 + ... + 2363544179.

It is an arithmetic number, because the mean of its divisors is an integer number (106359484095).

Almost surely, 2^420710848109 is an apocalyptic number.

It is an amenable number.

420710848109 is a deficient number, since it is larger than the sum of its proper divisors (4727088271).

420710848109 is an equidigital number, since it uses as much as digits as its factorization.

420710848109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4727088270.

The product of its (nonzero) digits is 129024, while the sum is 44.

The spelling of 420710848109 in words is "four hundred twenty billion, seven hundred ten million, eight hundred forty-eight thousand, one hundred nine".