28530084459 has 24 divisors (see below), whose sum is σ = 38514767760. Its totient is φ = 18785017152.

The previous prime is 28530084409. The next prime is 28530084461. The reversal of 28530084459 is 95448003582.

It is not a de Polignac number, because 28530084459 - 2¹¹ = 28530082411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28530084409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13788277 + ... + 13790345.

It is an arithmetic number, because the mean of its divisors is an integer number (1604781990).

Almost surely, 2^28530084459 is an apocalyptic number.

28530084459 is a deficient number, since it is larger than the sum of its proper divisors (9984683301).

28530084459 is a wasteful number, since it uses less digits than its factorization.

28530084459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2571 (or 2408 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 48.

The spelling of 28530084459 in words is "twenty-eight billion, five hundred thirty million, eighty-four thousand, four hundred fifty-nine".