28586850143 has 4 divisors (see below), whose sum is σ = 29126224728. Its totient is φ = 28047475560.

The previous prime is 28586850109. The next prime is 28586850161. The reversal of 28586850143 is 34105868582.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28586850143 - 2²⁰ = 28585801567 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28586850091 and 28586850100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28586850163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269687213 + ... + 269687318.

It is an arithmetic number, because the mean of its divisors is an integer number (7281556182).

Almost surely, 2^28586850143 is an apocalyptic number.

28586850143 is a deficient number, since it is larger than the sum of its proper divisors (539374585).

28586850143 is an equidigital number, since it uses as much as digits as its factorization.

28586850143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539374584.

The product of its (nonzero) digits is 1843200, while the sum is 50.

The spelling of 28586850143 in words is "twenty-eight billion, five hundred eighty-six million, eight hundred fifty thousand, one hundred forty-three".