28533384407 has 4 divisors (see below), whose sum is σ = 31127328456. Its totient is φ = 25939440360.

The previous prime is 28533384401. The next prime is 28533384431. The reversal of 28533384407 is 70448333582.

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 28533384407 - 2⁸ = 28533384151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28533384401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1296972008 + ... + 1296972029.

It is an arithmetic number, because the mean of its divisors is an integer number (7781832114).

Almost surely, 2^28533384407 is an apocalyptic number.

28533384407 is a deficient number, since it is larger than the sum of its proper divisors (2593944049).

28533384407 is a wasteful number, since it uses less digits than its factorization.

28533384407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2593944048.

The product of its (nonzero) digits is 1935360, while the sum is 47.

The spelling of 28533384407 in words is "twenty-eight billion, five hundred thirty-three million, three hundred eighty-four thousand, four hundred seven".