28759506605 has 8 divisors (see below), whose sum is σ = 35313999072. Its totient is φ = 22472544528.

The previous prime is 28759506599. The next prime is 28759506641. The reversal of 28759506605 is 50660595782.

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

It is a cyclic number.

It is not a de Polignac number, because 28759506605 - 2¹² = 28759502509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66882359 + ... + 66882788.

It is an arithmetic number, because the mean of its divisors is an integer number (4414249884).

Almost surely, 2^28759506605 is an apocalyptic number.

It is an amenable number.

28759506605 is a deficient number, since it is larger than the sum of its proper divisors (6554492467).

28759506605 is a wasteful number, since it uses less digits than its factorization.

28759506605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133765195.

The product of its (nonzero) digits is 4536000, while the sum is 53.

The spelling of 28759506605 in words is "twenty-eight billion, seven hundred fifty-nine million, five hundred six thousand, six hundred five".