28315836617 has 8 divisors (see below), whose sum is σ = 28383277440. Its totient is φ = 28248447600.

The previous prime is 28315836589. The next prime is 28315836709. The reversal of 28315836617 is 71663851382.

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 28315836617 - 2³⁰ = 27242094793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28315836817) 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, 1218059 + ... + 1241087.

It is an arithmetic number, because the mean of its divisors is an integer number (3547909680).

Almost surely, 2^28315836617 is an apocalyptic number.

It is an amenable number.

28315836617 is a deficient number, since it is larger than the sum of its proper divisors (67440823).

28315836617 is a wasteful number, since it uses less digits than its factorization.

28315836617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25903.

The product of its digits is 1451520, while the sum is 50.

The spelling of 28315836617 in words is "twenty-eight billion, three hundred fifteen million, eight hundred thirty-six thousand, six hundred seventeen".