428634366533 has 8 divisors (see below), whose sum is σ = 449585444352. Its totient is φ = 408176255376.

The previous prime is 428634366509. The next prime is 428634366551. The reversal of 428634366533 is 335663436824.

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

It is a cyclic number.

It is not a de Polignac number, because 428634366533 - 2¹² = 428634362437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428634366593) 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, 123239885 + ... + 123243362.

It is an arithmetic number, because the mean of its divisors is an integer number (56198180544).

Almost surely, 2^428634366533 is an apocalyptic number.

It is an amenable number.

428634366533 is a deficient number, since it is larger than the sum of its proper divisors (20951077819).

428634366533 is a wasteful number, since it uses less digits than its factorization.

428634366533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246483331.

The product of its digits is 22394880, while the sum is 53.

The spelling of 428634366533 in words is "four hundred twenty-eight billion, six hundred thirty-four million, three hundred sixty-six thousand, five hundred thirty-three".