428924056385 has 8 divisors (see below), whose sum is σ = 561500582976. Its totient is φ = 311944768240.

The previous prime is 428924056367. The next prime is 428924056397. The reversal of 428924056385 is 583650429824.

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

It is not a de Polignac number, because 428924056385 - 2⁸ = 428924056129 is a prime.

It is a super-2 number, since 2×428924056385² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 428924056385.

It is an unprimeable number.

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, 3899309549 + ... + 3899309658.

It is an arithmetic number, because the mean of its divisors is an integer number (70187572872).

Almost surely, 2^428924056385 is an apocalyptic number.

It is an amenable number.

428924056385 is a deficient number, since it is larger than the sum of its proper divisors (132576526591).

428924056385 is a wasteful number, since it uses less digits than its factorization.

428924056385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7798619223.

The product of its (nonzero) digits is 16588800, while the sum is 56.

The spelling of 428924056385 in words is "four hundred twenty-eight billion, nine hundred twenty-four million, fifty-six thousand, three hundred eighty-five".