12784534575 has 12 divisors (see below), whose sum is σ = 21137097288. Its totient is φ = 6818418400.

The previous prime is 12784534573. The next prime is 12784534601. The reversal of 12784534575 is 57543548721.

It is not a de Polignac number, because 12784534575 - 2¹ = 12784534573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12784534573) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85230156 + ... + 85230305.

It is an arithmetic number, because the mean of its divisors is an integer number (1761424774).

Almost surely, 2^12784534575 is an apocalyptic number.

12784534575 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12784534575 is a deficient number, since it is larger than the sum of its proper divisors (8352562713).

12784534575 is a wasteful number, since it uses less digits than its factorization.

12784534575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170460474 (or 170460469 counting only the distinct ones).

The product of its digits is 4704000, while the sum is 51.

The spelling of 12784534575 in words is "twelve billion, seven hundred eighty-four million, five hundred thirty-four thousand, five hundred seventy-five".