28769660252 has 12 divisors (see below), whose sum is σ = 53308488240. Its totient is φ = 13538663616.

The previous prime is 28769660207. The next prime is 28769660263. The reversal of 28769660252 is 25206696782.

It is a junction number, because it is equal to n+sod(n) for n = 28769660194 and 28769660203.

It is a congruent number.

It is an unprimeable number.

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, 211541552 + ... + 211541687.

It is an arithmetic number, because the mean of its divisors is an integer number (4442374020).

Almost surely, 2^28769660252 is an apocalyptic number.

It is an amenable number.

28769660252 is a deficient number, since it is larger than the sum of its proper divisors (24538827988).

28769660252 is a wasteful number, since it uses less digits than its factorization.

28769660252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423083260 (or 423083258 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 53.

The spelling of 28769660252 in words is "twenty-eight billion, seven hundred sixty-nine million, six hundred sixty thousand, two hundred fifty-two".