12745253487 has 4 divisors (see below), whose sum is σ = 16993671320. Its totient is φ = 8496835656.

The previous prime is 12745253467. The next prime is 12745253491. The reversal of 12745253487 is 78435254721.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12745253487 - 2¹⁴ = 12745237103 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 (12745253467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2124208912 + ... + 2124208917.

It is an arithmetic number, because the mean of its divisors is an integer number (4248417830).

Almost surely, 2^12745253487 is an apocalyptic number.

12745253487 is a deficient number, since it is larger than the sum of its proper divisors (4248417833).

12745253487 is an equidigital number, since it uses as much as digits as its factorization.

12745253487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4248417832.

The product of its digits is 1881600, while the sum is 48.

The spelling of 12745253487 in words is "twelve billion, seven hundred forty-five million, two hundred fifty-three thousand, four hundred eighty-seven".