28754682253 has 4 divisors (see below), whose sum is σ = 31368744288. Its totient is φ = 26140620220.

The previous prime is 28754682247. The next prime is 28754682269. The reversal of 28754682253 is 35228645782.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-28754682253 is a prime.

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 28754682253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28754682223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1307031001 + ... + 1307031022.

It is an arithmetic number, because the mean of its divisors is an integer number (7842186072).

Almost surely, 2^28754682253 is an apocalyptic number.

It is an amenable number.

28754682253 is a deficient number, since it is larger than the sum of its proper divisors (2614062035).

28754682253 is a wasteful number, since it uses less digits than its factorization.

28754682253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2614062034.

The product of its digits is 6451200, while the sum is 52.

The spelling of 28754682253 in words is "twenty-eight billion, seven hundred fifty-four million, six hundred eighty-two thousand, two hundred fifty-three".