428884852009 has 4 divisors (see below), whose sum is σ = 428887682704. Its totient is φ = 428882021316.

The previous prime is 428884852003. The next prime is 428884852021. The reversal of 428884852009 is 900258488824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 428884852009 - 2⁵ = 428884851977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428884852003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1174407 + ... + 1495660.

It is an arithmetic number, because the mean of its divisors is an integer number (107221920676).

Almost surely, 2^428884852009 is an apocalyptic number.

It is an amenable number.

428884852009 is a deficient number, since it is larger than the sum of its proper divisors (2830695).

428884852009 is a wasteful number, since it uses less digits than its factorization.

428884852009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2830694.

The product of its (nonzero) digits is 11796480, while the sum is 58.

The spelling of 428884852009 in words is "four hundred twenty-eight billion, eight hundred eighty-four million, eight hundred fifty-two thousand, nine".