12457240416928 has 12 divisors (see below), whose sum is σ = 24525192070890. Its totient is φ = 6228620208448.

The previous prime is 12457240416917. The next prime is 12457240416931. The reversal of 12457240416928 is 82961404275421.

It can be written as a sum of positive squares in only one way, i.e., 11436760621584 + 1020479795344 = 3381828^2 + 1010188^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194644381483 + ... + 194644381546.

Almost surely, 2^{12457240416928} is an apocalyptic number.

It is an amenable number.

12457240416928 is a deficient number, since it is larger than the sum of its proper divisors (12067951653962).

12457240416928 is an equidigital number, since it uses as much as digits as its factorization.

12457240416928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389288763039 (or 389288763031 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 55.

The spelling of 12457240416928 in words is "twelve trillion, four hundred fifty-seven billion, two hundred forty million, four hundred sixteen thousand, nine hundred twenty-eight".