28252796447 has 8 divisors (see below), whose sum is σ = 28295717040. Its totient is φ = 28209910720.

The previous prime is 28252796437. The next prime is 28252796459. The reversal of 28252796447 is 74469725282.

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 28252796447 - 2¹⁰ = 28252795423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28252796392 and 28252796401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28252796437) 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, 1923443 + ... + 1938075.

It is an arithmetic number, because the mean of its divisors is an integer number (3536964630).

Almost surely, 2^28252796447 is an apocalyptic number.

28252796447 is a deficient number, since it is larger than the sum of its proper divisors (42920593).

28252796447 is a wasteful number, since it uses less digits than its factorization.

28252796447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17433.

The product of its digits is 13547520, while the sum is 56.

The spelling of 28252796447 in words is "twenty-eight billion, two hundred fifty-two million, seven hundred ninety-six thousand, four hundred forty-seven".