12339478544 has 10 divisors (see below), whose sum is σ = 23907739710. Its totient is φ = 6169739264.

The previous prime is 12339478537. The next prime is 12339478561. The reversal of 12339478544 is 44587493321.

It can be written as a sum of positive squares in only one way, i.e., 7754563600 + 4584914944 = 88060^2 + 67712^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12339478492 and 12339478501.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385608689 + ... + 385608720.

It is an arithmetic number, because the mean of its divisors is an integer number (2390773971).

Almost surely, 2^12339478544 is an apocalyptic number.

It is an amenable number.

12339478544 is a deficient number, since it is larger than the sum of its proper divisors (11568261166).

12339478544 is an equidigital number, since it uses as much as digits as its factorization.

12339478544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771217417 (or 771217411 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 50.

The spelling of 12339478544 in words is "twelve billion, three hundred thirty-nine million, four hundred seventy-eight thousand, five hundred forty-four".