12398575744 has 32 divisors (see below), whose sum is σ = 24726449340. Its totient is φ = 6192721920.

The previous prime is 12398575741. The next prime is 12398575747. The reversal of 12398575744 is 44757589321.

It is an interprime number because it is at equal distance from previous prime (12398575741) and next prime (12398575747).

It can be written as a sum of positive squares in 2 ways, for example, as 10991425600 + 1407150144 = 104840^2 + 37512^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (12398575741) 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, 71164 + ... + 172804.

Almost surely, 2^12398575744 is an apocalyptic number.

It is an amenable number.

12398575744 is a deficient number, since it is larger than the sum of its proper divisors (12327873596).

12398575744 is an equidigital number, since it uses as much as digits as its factorization.

12398575744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102608 (or 102596 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 55.

The spelling of 12398575744 in words is "twelve billion, three hundred ninety-eight million, five hundred seventy-five thousand, seven hundred forty-four".