28696606589 has 8 divisors (see below), whose sum is σ = 32797380288. Its totient is φ = 24596147520.

The previous prime is 28696606583. The next prime is 28696606591. The reversal of 28696606589 is 98560669682.

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

It is not a de Polignac number, because 28696606589 - 2¹⁶ = 28696541053 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 (28696606583) 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, 168629 + ... + 292965.

It is an arithmetic number, because the mean of its divisors is an integer number (4099672536).

Almost surely, 2^28696606589 is an apocalyptic number.

It is an amenable number.

28696606589 is a deficient number, since it is larger than the sum of its proper divisors (4100773699).

28696606589 is a wasteful number, since it uses less digits than its factorization.

28696606589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157315.

The product of its (nonzero) digits is 67184640, while the sum is 65.

The spelling of 28696606589 in words is "twenty-eight billion, six hundred ninety-six million, six hundred six thousand, five hundred eighty-nine".