28665964743 has 8 divisors (see below), whose sum is σ = 41161385328. Its totient is φ = 17640593664.

The previous prime is 28665964687. The next prime is 28665964751. The reversal of 28665964743 is 34746956682.

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

It is not a de Polignac number, because 28665964743 - 2¹² = 28665960647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28665964543) 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, 367512330 + ... + 367512407.

It is an arithmetic number, because the mean of its divisors is an integer number (5145173166).

Almost surely, 2^28665964743 is an apocalyptic number.

28665964743 is a deficient number, since it is larger than the sum of its proper divisors (12495420585).

28665964743 is a wasteful number, since it uses less digits than its factorization.

28665964743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735024753.

The product of its digits is 52254720, while the sum is 60.

The spelling of 28665964743 in words is "twenty-eight billion, six hundred sixty-five million, nine hundred sixty-four thousand, seven hundred forty-three".