428403082647 has 8 divisors (see below), whose sum is σ = 571488158080. Its totient is φ = 285460031160.

The previous prime is 428403082607. The next prime is 428403082753. The reversal of 428403082647 is 746280304824.

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

It is not a de Polignac number, because 428403082647 - 2⁷ = 428403082519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 428403082596 and 428403082605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428403082607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35498947 + ... + 35511012.

It is an arithmetic number, because the mean of its divisors is an integer number (71436019760).

Almost surely, 2^428403082647 is an apocalyptic number.

428403082647 is a deficient number, since it is larger than the sum of its proper divisors (143085075433).

428403082647 is a wasteful number, since it uses less digits than its factorization.

428403082647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71011973.

The product of its (nonzero) digits is 2064384, while the sum is 48.

The spelling of 428403082647 in words is "four hundred twenty-eight billion, four hundred three million, eighty-two thousand, six hundred forty-seven".