12448920128 has 14 divisors (see below), whose sum is σ = 24703326006. Its totient is φ = 6224460032.

The previous prime is 12448920119. The next prime is 12448920149. The reversal of 12448920128 is 82102984421.

It can be written as a sum of positive squares in only one way, i.e., 8170713664 + 4278206464 = 90392^2 + 65408^2 .

It is a super-2 number, since 2×12448920128² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97257125 + ... + 97257252.

Almost surely, 2^12448920128 is an apocalyptic number.

It is an amenable number.

12448920128 is a deficient number, since it is larger than the sum of its proper divisors (12254405878).

12448920128 is an equidigital number, since it uses as much as digits as its factorization.

12448920128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194514389 (or 194514379 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 41.

The spelling of 12448920128 in words is "twelve billion, four hundred forty-eight million, nine hundred twenty thousand, one hundred twenty-eight".