28053876317 has 4 divisors (see below), whose sum is σ = 28073211936. Its totient is φ = 28034540700.

The previous prime is 28053876269. The next prime is 28053876353. The reversal of 28053876317 is 71367835082.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28053876317 - 2¹⁰ = 28053875293 is a prime.

It is a super-3 number, since 3×28053876317³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28053876517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9665633 + ... + 9668534.

It is an arithmetic number, because the mean of its divisors is an integer number (7018302984).

Almost surely, 2^28053876317 is an apocalyptic number.

It is an amenable number.

28053876317 is a deficient number, since it is larger than the sum of its proper divisors (19335619).

28053876317 is a wasteful number, since it uses less digits than its factorization.

28053876317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19335618.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The spelling of 28053876317 in words is "twenty-eight billion, fifty-three million, eight hundred seventy-six thousand, three hundred seventeen".