28285455441 has 8 divisors (see below), whose sum is σ = 38353160160. Its totient is φ = 18537360512.

The previous prime is 28285455431. The next prime is 28285455449. The reversal of 28285455441 is 14455458282.

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 28285455441 - 2⁹ = 28285454929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28285455449) 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, 79902240 + ... + 79902593.

It is an arithmetic number, because the mean of its divisors is an integer number (4794145020).

Almost surely, 2^28285455441 is an apocalyptic number.

It is an amenable number.

28285455441 is a deficient number, since it is larger than the sum of its proper divisors (10067704719).

28285455441 is a wasteful number, since it uses less digits than its factorization.

28285455441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159804895.

The product of its digits is 2048000, while the sum is 48.

The spelling of 28285455441 in words is "twenty-eight billion, two hundred eighty-five million, four hundred fifty-five thousand, four hundred forty-one".