428359778063 has 36 divisors (see below), whose sum is σ = 540116905032. Its totient is φ = 338439396960.

The previous prime is 428359778053. The next prime is 428359778069. The reversal of 428359778063 is 360877953824.

It is a Cunningham number, because it is equal to 654492²-1.

It is not a de Polignac number, because 428359778063 - 2¹⁰ = 428359777039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 428359777987 and 428359778005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428359778069) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 327248 + ... + 981738.

It is an arithmetic number, because the mean of its divisors is an integer number (15003247362).

Almost surely, 2^428359778063 is an apocalyptic number.

428359778063 is a deficient number, since it is larger than the sum of its proper divisors (111757126969).

428359778063 is a wasteful number, since it uses less digits than its factorization.

428359778063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654580 (or 654554 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 62.

The spelling of 428359778063 in words is "four hundred twenty-eight billion, three hundred fifty-nine million, seven hundred seventy-eight thousand, sixty-three".