12817448025 has 12 divisors (see below), whose sum is σ = 21191514192. Its totient is φ = 6835972240.

The previous prime is 12817448023. The next prime is 12817448069. The reversal of 12817448025 is 52084471821.

It is not a de Polignac number, because 12817448025 - 2¹ = 12817448023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12817448023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85449579 + ... + 85449728.

It is an arithmetic number, because the mean of its divisors is an integer number (1765959516).

Almost surely, 2^12817448025 is an apocalyptic number.

12817448025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12817448025 is a deficient number, since it is larger than the sum of its proper divisors (8374066167).

12817448025 is a wasteful number, since it uses less digits than its factorization.

12817448025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170899320 (or 170899315 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 42.

The spelling of 12817448025 in words is "twelve billion, eight hundred seventeen million, four hundred forty-eight thousand, twenty-five".