12528303715 has 4 divisors (see below), whose sum is σ = 15033964464. Its totient is φ = 10022642968.

The previous prime is 12528303707. The next prime is 12528303719. The reversal of 12528303715 is 51730382521.

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 12528303715 - 2³ = 12528303707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12528303719) 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, 1252830367 + ... + 1252830376.

It is an arithmetic number, because the mean of its divisors is an integer number (3758491116).

Almost surely, 2^12528303715 is an apocalyptic number.

12528303715 is a deficient number, since it is larger than the sum of its proper divisors (2505660749).

12528303715 is an equidigital number, since it uses as much as digits as its factorization.

12528303715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2505660748.

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 12528303715 in words is "twelve billion, five hundred twenty-eight million, three hundred three thousand, seven hundred fifteen".