428012425063 has 4 divisors (see below), whose sum is σ = 428533756488. Its totient is φ = 427491093640.

The previous prime is 428012424967. The next prime is 428012425069. The reversal of 428012425063 is 360524210824.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428012425063 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 (428012425069) 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, 260664481 + ... + 260666122.

It is an arithmetic number, because the mean of its divisors is an integer number (107133439122).

Almost surely, 2^428012425063 is an apocalyptic number.

428012425063 is a deficient number, since it is larger than the sum of its proper divisors (521331425).

428012425063 is an equidigital number, since it uses as much as digits as its factorization.

428012425063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521331424.

The product of its (nonzero) digits is 92160, while the sum is 37.

Adding to 428012425063 its reverse (360524210824), we get a palindrome (788536635887).

The spelling of 428012425063 in words is "four hundred twenty-eight billion, twelve million, four hundred twenty-five thousand, sixty-three".