28482219985 has 8 divisors (see below), whose sum is σ = 36189173736. Its totient is φ = 21445436160.

The previous prime is 28482219977. The next prime is 28482220001. The reversal of 28482219985 is 58991228482.

It can be written as a sum of positive squares in 4 ways, for example, as 1054885441 + 27427334544 = 32479^2 + 165612^2 .

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

It is not a de Polignac number, because 28482219985 - 2³ = 28482219977 is a prime.

It is a super-2 number, since 2×28482219985² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167542386 + ... + 167542555.

It is an arithmetic number, because the mean of its divisors is an integer number (4523646717).

Almost surely, 2^28482219985 is an apocalyptic number.

It is an amenable number.

28482219985 is a deficient number, since it is larger than the sum of its proper divisors (7706953751).

28482219985 is a wasteful number, since it uses less digits than its factorization.

28482219985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335084963.

The product of its digits is 6635520, while the sum is 58.

The spelling of 28482219985 in words is "twenty-eight billion, four hundred eighty-two million, two hundred nineteen thousand, nine hundred eighty-five".