28769907253 has 4 divisors (see below), whose sum is σ = 28775198368. Its totient is φ = 28764616140.

The previous prime is 28769907241. The next prime is 28769907263. The reversal of 28769907253 is 35270996782.

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 cyclic number.

It is not a de Polignac number, because 28769907253 - 2²¹ = 28767810101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28769907263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2637393 + ... + 2648278.

It is an arithmetic number, because the mean of its divisors is an integer number (7193799592).

Almost surely, 2^28769907253 is an apocalyptic number.

It is an amenable number.

28769907253 is a deficient number, since it is larger than the sum of its proper divisors (5291115).

28769907253 is an equidigital number, since it uses as much as digits as its factorization.

28769907253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5291114.

The product of its (nonzero) digits is 11430720, while the sum is 58.

The spelling of 28769907253 in words is "twenty-eight billion, seven hundred sixty-nine million, nine hundred seven thousand, two hundred fifty-three".