28839149388743 has 8 divisors (see below), whose sum is σ = 30538817538768. Its totient is φ = 27139842082944.

The previous prime is 28839149388691. The next prime is 28839149388773. The reversal of 28839149388743 is 34788394193882.

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 28839149388743 - 2²² = 28839145194439 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 (28839149388773) 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, 90046496 + ... + 90366197.

It is an arithmetic number, because the mean of its divisors is an integer number (3817352192346).

Almost surely, 2^{28839149388743} is an apocalyptic number.

28839149388743 is a deficient number, since it is larger than the sum of its proper divisors (1699668150025).

28839149388743 is a wasteful number, since it uses less digits than its factorization.

28839149388743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180422113.

The product of its digits is 2006581248, while the sum is 77.

The spelling of 28839149388743 in words is "twenty-eight trillion, eight hundred thirty-nine billion, one hundred forty-nine million, three hundred eighty-eight thousand, seven hundred forty-three".