28296668659 has 16 divisors (see below), whose sum is σ = 32803439616. Its totient is φ = 23906181600.

The previous prime is 28296668651. The next prime is 28296668671. The reversal of 28296668659 is 95686669282.

It is not a de Polignac number, because 28296668659 - 2³ = 28296668651 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28296668594 and 28296668603.

It is not an unprimeable number, because it can be changed into a prime (28296668651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2995674 + ... + 3005104.

It is an arithmetic number, because the mean of its divisors is an integer number (2050214976).

Almost surely, 2^28296668659 is an apocalyptic number.

28296668659 is a deficient number, since it is larger than the sum of its proper divisors (4506770957).

28296668659 is an equidigital number, since it uses as much as digits as its factorization.

28296668659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15546.

The product of its digits is 134369280, while the sum is 67.

The spelling of 28296668659 in words is "twenty-eight billion, two hundred ninety-six million, six hundred sixty-eight thousand, six hundred fifty-nine".