28366950617 has 8 divisors (see below), whose sum is σ = 30400305216. Its totient is φ = 26400263472.

The previous prime is 28366950611. The next prime is 28366950629. The reversal of 28366950617 is 71605966382.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28366950617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28366950611) 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, 16665983 + ... + 16667684.

It is an arithmetic number, because the mean of its divisors is an integer number (3800038152).

Almost surely, 2^28366950617 is an apocalyptic number.

It is an amenable number.

28366950617 is a deficient number, since it is larger than the sum of its proper divisors (2033354599).

28366950617 is a wasteful number, since it uses less digits than its factorization.

28366950617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33333727.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 28366950617 in words is "twenty-eight billion, three hundred sixty-six million, nine hundred fifty thousand, six hundred seventeen".