28315952589 has 8 divisors (see below), whose sum is σ = 38143826560. Its totient is φ = 18682690176.

The previous prime is 28315952551. The next prime is 28315952593. The reversal of 28315952589 is 98525951382.

It is a happy number.

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

It is not a de Polignac number, because 28315952589 - 2¹¹ = 28315950541 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 (28315952689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48652549 + ... + 48653130.

It is an arithmetic number, because the mean of its divisors is an integer number (4767978320).

Almost surely, 2^28315952589 is an apocalyptic number.

It is an amenable number.

28315952589 is a deficient number, since it is larger than the sum of its proper divisors (9827873971).

28315952589 is an equidigital number, since it uses as much as digits as its factorization.

28315952589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97305779.

The product of its digits is 7776000, while the sum is 57.

The spelling of 28315952589 in words is "twenty-eight billion, three hundred fifteen million, nine hundred fifty-two thousand, five hundred eighty-nine".