428554038385 has 16 divisors (see below), whose sum is σ = 562429363392. Its totient is φ = 310890571200.

The previous prime is 428554038383. The next prime is 428554038397. The reversal of 428554038385 is 583830455824.

It is not a de Polignac number, because 428554038385 - 2¹ = 428554038383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428554038383) 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 15 ways as a sum of consecutive naturals, for example, 9791631 + ... + 9835300.

It is an arithmetic number, because the mean of its divisors is an integer number (35151835212).

Almost surely, 2^428554038385 is an apocalyptic number.

It is an amenable number.

428554038385 is a deficient number, since it is larger than the sum of its proper divisors (133875325007).

428554038385 is a wasteful number, since it uses less digits than its factorization.

428554038385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19627344.

The product of its (nonzero) digits is 18432000, while the sum is 55.

The spelling of 428554038385 in words is "four hundred twenty-eight billion, five hundred fifty-four million, thirty-eight thousand, three hundred eighty-five".