12344582728 has 16 divisors (see below), whose sum is σ = 23152653180. Its totient is φ = 6170541888.

The previous prime is 12344582711. The next prime is 12344582807. The reversal of 12344582728 is 82728544321.

It can be written as a sum of positive squares in 2 ways, for example, as 12218649444 + 125933284 = 110538^2 + 11222^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188451 + ... + 245362.

Almost surely, 2^12344582728 is an apocalyptic number.

It is an amenable number.

12344582728 is a deficient number, since it is larger than the sum of its proper divisors (10808070452).

12344582728 is a wasteful number, since it uses less digits than its factorization.

12344582728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437376 (or 437372 counting only the distinct ones).

The product of its digits is 860160, while the sum is 46.

The spelling of 12344582728 in words is "twelve billion, three hundred forty-four million, five hundred eighty-two thousand, seven hundred twenty-eight".