12945072559 has 4 divisors (see below), whose sum is σ = 13012848000. Its totient is φ = 12877297120.

The previous prime is 12945072551. The next prime is 12945072563. The reversal of 12945072559 is 95527054921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95527054921 = 10223 ⋅9344327.

It is a cyclic number.

It is not a de Polignac number, because 12945072559 - 2³ = 12945072551 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 (12945072551) 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, 33887434 + ... + 33887815.

It is an arithmetic number, because the mean of its divisors is an integer number (3253212000).

Almost surely, 2^12945072559 is an apocalyptic number.

12945072559 is a deficient number, since it is larger than the sum of its proper divisors (67775441).

12945072559 is an equidigital number, since it uses as much as digits as its factorization.

12945072559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67775440.

The product of its (nonzero) digits is 1134000, while the sum is 49.

The spelling of 12945072559 in words is "twelve billion, nine hundred forty-five million, seventy-two thousand, five hundred fifty-nine".