28534963009 has 4 divisors (see below), whose sum is σ = 32611386304. Its totient is φ = 24458539716.

The previous prime is 28534962947. The next prime is 28534963117. The reversal of 28534963009 is 90036943582.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28534963009 - 2¹³ = 28534954817 is a prime.

It is a super-2 number, since 2×28534963009² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28534969009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2038211637 + ... + 2038211650.

It is an arithmetic number, because the mean of its divisors is an integer number (8152846576).

Almost surely, 2^28534963009 is an apocalyptic number.

It is an amenable number.

28534963009 is a deficient number, since it is larger than the sum of its proper divisors (4076423295).

28534963009 is an equidigital number, since it uses as much as digits as its factorization.

28534963009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4076423294.

The product of its (nonzero) digits is 1399680, while the sum is 49.

The spelling of 28534963009 in words is "twenty-eight billion, five hundred thirty-four million, nine hundred sixty-three thousand, nine".