28241635969 has 4 divisors (see below), whose sum is σ = 28431177300. Its totient is φ = 28052094640.

The previous prime is 28241635963. The next prime is 28241635987. The reversal of 28241635969 is 96953614282.

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

It can be written as a sum of positive squares in 2 ways, for example, as 955551744 + 27286084225 = 30912^2 + 165185^2 .

It is a cyclic number.

It is not a de Polignac number, because 28241635969 - 2³¹ = 26094152321 is a prime.

It is a super-2 number, since 2×28241635969² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28241635963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94770442 + ... + 94770739.

It is an arithmetic number, because the mean of its divisors is an integer number (7107794325).

Almost surely, 2^28241635969 is an apocalyptic number.

It is an amenable number.

28241635969 is a deficient number, since it is larger than the sum of its proper divisors (189541331).

28241635969 is a wasteful number, since it uses less digits than its factorization.

28241635969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189541330.

The product of its digits is 5598720, while the sum is 55.

The spelling of 28241635969 in words is "twenty-eight billion, two hundred forty-one million, six hundred thirty-five thousand, nine hundred sixty-nine".