28753628271 has 8 divisors (see below), whose sum is σ = 38349018240. Its totient is φ = 19163661912.

The previous prime is 28753628269. The next prime is 28753628291. The reversal of 28753628271 is 17282635782.

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

It is not a de Polignac number, because 28753628271 - 2¹ = 28753628269 is a prime.

It is a super-2 number, since 2×28753628271² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28753628291) 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, 1343515 + ... + 1364748.

It is an arithmetic number, because the mean of its divisors is an integer number (4793627280).

Almost surely, 2^28753628271 is an apocalyptic number.

28753628271 is a deficient number, since it is larger than the sum of its proper divisors (9595389969).

28753628271 is a wasteful number, since it uses less digits than its factorization.

28753628271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2711805.

The product of its digits is 2257920, while the sum is 51.

The spelling of 28753628271 in words is "twenty-eight billion, seven hundred fifty-three million, six hundred twenty-eight thousand, two hundred seventy-one".