28917166793 has 16 divisors (see below), whose sum is σ = 31166857920. Its totient is φ = 26741062656.

The previous prime is 28917166771. The next prime is 28917166801. The reversal of 28917166793 is 39766171982.

It is a cyclic number.

It is not a de Polignac number, because 28917166793 - 2²⁴ = 28900389577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28917166703) 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, 1376021 + ... + 1396877.

It is an arithmetic number, because the mean of its divisors is an integer number (1947928620).

Almost surely, 2^28917166793 is an apocalyptic number.

It is an amenable number.

28917166793 is a deficient number, since it is larger than the sum of its proper divisors (2249691127).

28917166793 is a wasteful number, since it uses less digits than its factorization.

28917166793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22616.

The product of its digits is 6858432, while the sum is 59.

The spelling of 28917166793 in words is "twenty-eight billion, nine hundred seventeen million, one hundred sixty-six thousand, seven hundred ninety-three".