428633722285 has 16 divisors (see below), whose sum is σ = 537385887360. Its totient is φ = 327593471040.

The previous prime is 428633722261. The next prime is 428633722291. The reversal of 428633722285 is 582227336824.

It is not a de Polignac number, because 428633722285 - 2⁷ = 428633722157 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2204670 + ... + 2391199.

It is an arithmetic number, because the mean of its divisors is an integer number (33586617960).

Almost surely, 2^428633722285 is an apocalyptic number.

It is an amenable number.

428633722285 is a deficient number, since it is larger than the sum of its proper divisors (108752165075).

428633722285 is a wasteful number, since it uses less digits than its factorization.

428633722285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4596708.

The product of its digits is 7741440, while the sum is 52.

The spelling of 428633722285 in words is "four hundred twenty-eight billion, six hundred thirty-three million, seven hundred twenty-two thousand, two hundred eighty-five".