28440451135 has 4 divisors (see below), whose sum is σ = 34128541368. Its totient is φ = 22752360904.

The previous prime is 28440451111. The next prime is 28440451141. The reversal of 28440451135 is 53115404482.

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 28440451135 - 2²⁹ = 27903580223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28440451094 and 28440451103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2844045109 + ... + 2844045118.

It is an arithmetic number, because the mean of its divisors is an integer number (8532135342).

Almost surely, 2^28440451135 is an apocalyptic number.

28440451135 is a deficient number, since it is larger than the sum of its proper divisors (5688090233).

28440451135 is an equidigital number, since it uses as much as digits as its factorization.

28440451135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5688090232.

The product of its (nonzero) digits is 76800, while the sum is 37.

The spelling of 28440451135 in words is "twenty-eight billion, four hundred forty million, four hundred fifty-one thousand, one hundred thirty-five".