12573515899 has 4 divisors (see below), whose sum is σ = 14369732464. Its totient is φ = 10777299336.

The previous prime is 12573515893. The next prime is 12573515909. The reversal of 12573515899 is 99851537521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99851537521 = 223441 ⋅446881.

It is a cyclic number.

It is not a de Polignac number, because 12573515899 - 2¹³ = 12573507707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12573515893) 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, 898108272 + ... + 898108285.

It is an arithmetic number, because the mean of its divisors is an integer number (3592433116).

Almost surely, 2^12573515899 is an apocalyptic number.

12573515899 is a deficient number, since it is larger than the sum of its proper divisors (1796216565).

12573515899 is an equidigital number, since it uses as much as digits as its factorization.

12573515899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796216564.

The product of its digits is 3402000, while the sum is 55.

The spelling of 12573515899 in words is "twelve billion, five hundred seventy-three million, five hundred fifteen thousand, eight hundred ninety-nine".