28317717201 has 16 divisors (see below), whose sum is σ = 38035020800. Its totient is φ = 18739630800.

The previous prime is 28317717199. The next prime is 28317717229. The reversal of 28317717201 is 10271771382.

It is not a de Polignac number, because 28317717201 - 2¹ = 28317717199 is a prime.

It is a super-2 number, since 2×28317717201² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28317717201.

It is not an unprimeable number, because it can be changed into a prime (28317717251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 611406 + ... + 656088.

It is an arithmetic number, because the mean of its divisors is an integer number (2377188800).

Almost surely, 2^28317717201 is an apocalyptic number.

It is an amenable number.

28317717201 is a deficient number, since it is larger than the sum of its proper divisors (9717303599).

28317717201 is a wasteful number, since it uses less digits than its factorization.

28317717201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46236.

The product of its (nonzero) digits is 32928, while the sum is 39.

The spelling of 28317717201 in words is "twenty-eight billion, three hundred seventeen million, seven hundred seventeen thousand, two hundred one".