12325545044449 has 12 divisors (see below), whose sum is σ = 15440792693844. Its totient is φ = 9752079595104.

The previous prime is 12325545044437. The next prime is 12325545044459. The reversal of 12325545044449 is 94444054552321.

It can be written as a sum of positive squares in 2 ways, for example, as 5758113754449 + 6567431290000 = 2399607^2 + 2562700^2 .

It is a de Polignac number, because none of the positive numbers 2^k-12325545044449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12325545044396 and 12325545044405.

It is not an unprimeable number, because it can be changed into a prime (12325545044459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9674681502 + ... + 9674682775.

It is an arithmetic number, because the mean of its divisors is an integer number (1286732724487).

Almost surely, 2^{12325545044449} is an apocalyptic number.

It is an amenable number.

12325545044449 is a deficient number, since it is larger than the sum of its proper divisors (3115247649395).

12325545044449 is a wasteful number, since it uses less digits than its factorization.

12325545044449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19349364304 (or 19349364297 counting only the distinct ones).

The product of its (nonzero) digits is 13824000, while the sum is 52.

The spelling of 12325545044449 in words is "twelve trillion, three hundred twenty-five billion, five hundred forty-five million, forty-four thousand, four hundred forty-nine".