428375903207 has 8 divisors (see below), whose sum is σ = 489622136832. Its totient is φ = 367142088600.

The previous prime is 428375903203. The next prime is 428375903237. The reversal of 428375903207 is 702309573824.

It is a happy number.

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

It is not a de Polignac number, because 428375903207 - 2² = 428375903203 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 (428375903203) 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 7 ways as a sum of consecutive naturals, for example, 3030719 + ... + 3168912.

It is an arithmetic number, because the mean of its divisors is an integer number (61202767104).

Almost surely, 2^428375903207 is an apocalyptic number.

428375903207 is a deficient number, since it is larger than the sum of its proper divisors (61246233625).

428375903207 is an equidigital number, since it uses as much as digits as its factorization.

428375903207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6209509.

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 428375903207 in words is "four hundred twenty-eight billion, three hundred seventy-five million, nine hundred three thousand, two hundred seven".