28530824577 has 16 divisors (see below), whose sum is σ = 38141851968. Its totient is φ = 18970237440.

The previous prime is 28530824563. The next prime is 28530824599. The reversal of 28530824577 is 77542803582.

It is not a de Polignac number, because 28530824577 - 2⁴ = 28530824561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28530824677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1990677 + ... + 2004957.

It is an arithmetic number, because the mean of its divisors is an integer number (2383865748).

Almost surely, 2^28530824577 is an apocalyptic number.

It is an amenable number.

28530824577 is a deficient number, since it is larger than the sum of its proper divisors (9611027391).

28530824577 is a wasteful number, since it uses less digits than its factorization.

28530824577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16000.

The product of its (nonzero) digits is 3763200, while the sum is 51.

The spelling of 28530824577 in words is "twenty-eight billion, five hundred thirty million, eight hundred twenty-four thousand, five hundred seventy-seven".