12745253539 has 4 divisors (see below), whose sum is σ = 12745503760. Its totient is φ = 12745003320.

The previous prime is 12745253537. The next prime is 12745253551. The reversal of 12745253539 is 93535254721.

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 12745253539 - 2¹ = 12745253537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12745253537) 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, 18324 + ... + 160705.

It is an arithmetic number, because the mean of its divisors is an integer number (3186375940).

Almost surely, 2^12745253539 is an apocalyptic number.

12745253539 is a deficient number, since it is larger than the sum of its proper divisors (250221).

12745253539 is an equidigital number, since it uses as much as digits as its factorization.

12745253539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250220.

The product of its digits is 1134000, while the sum is 46.

The spelling of 12745253539 in words is "twelve billion, seven hundred forty-five million, two hundred fifty-three thousand, five hundred thirty-nine".