28362782317 has 8 divisors (see below), whose sum is σ = 28433094336. Its totient is φ = 28292507232.

The previous prime is 28362782299. The next prime is 28362782321. The reversal of 28362782317 is 71328726382.

It is a happy number.

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 28362782317 - 2¹¹ = 28362780269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28362782017) 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, 2115168 + ... + 2128534.

It is an arithmetic number, because the mean of its divisors is an integer number (3554136792).

Almost surely, 2^28362782317 is an apocalyptic number.

It is an amenable number.

28362782317 is a deficient number, since it is larger than the sum of its proper divisors (70312019).

28362782317 is a wasteful number, since it uses less digits than its factorization.

28362782317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18467.

The product of its digits is 1354752, while the sum is 49.

The spelling of 28362782317 in words is "twenty-eight billion, three hundred sixty-two million, seven hundred eighty-two thousand, three hundred seventeen".