28233664469 has 8 divisors (see below), whose sum is σ = 28536429600. Its totient is φ = 27932410000.

The previous prime is 28233664427. The next prime is 28233664477. The reversal of 28233664469 is 96446633282.

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 28233664469 - 2²⁰ = 28232615893 is a prime.

It is a super-2 number, since 2×28233664469² (a number of 22 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 28233664469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28233664409) 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, 340067 + ... + 414864.

It is an arithmetic number, because the mean of its divisors is an integer number (3567053700).

Almost surely, 2^28233664469 is an apocalyptic number.

It is an amenable number.

28233664469 is a deficient number, since it is larger than the sum of its proper divisors (302765131).

28233664469 is a wasteful number, since it uses less digits than its factorization.

28233664469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755331.

The product of its digits is 8957952, while the sum is 53.

The spelling of 28233664469 in words is "twenty-eight billion, two hundred thirty-three million, six hundred sixty-four thousand, four hundred sixty-nine".