28439128383 has 8 divisors (see below), whose sum is σ = 38375691648. Its totient is φ = 18730992024.

The previous prime is 28439128381. The next prime is 28439128411. The reversal of 28439128383 is 38382193482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28439128383 - 2¹ = 28439128381 is a prime.

It is a super-3 number, since 3×28439128383³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28439128381) 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, 57106435 + ... + 57106932.

It is an arithmetic number, because the mean of its divisors is an integer number (4796961456).

Almost surely, 2^28439128383 is an apocalyptic number.

28439128383 is a deficient number, since it is larger than the sum of its proper divisors (9936563265).

28439128383 is a wasteful number, since it uses less digits than its factorization.

28439128383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114213453.

The product of its digits is 1990656, while the sum is 51.

The spelling of 28439128383 in words is "twenty-eight billion, four hundred thirty-nine million, one hundred twenty-eight thousand, three hundred eighty-three".