11728895678452 has 12 divisors (see below), whose sum is σ = 20533594661860. Its totient is φ = 5862154346496.

The previous prime is 11728895678449. The next prime is 11728895678471. The reversal of 11728895678452 is 25487659882711.

It can be written as a sum of positive squares in 2 ways, for example, as 2488487320036 + 9240408358416 = 1577494^2 + 3039804^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 573361677 + ... + 573382132.

Almost surely, 2^{11728895678452} is an apocalyptic number.

It is an amenable number.

11728895678452 is a deficient number, since it is larger than the sum of its proper divisors (8804698983408).

11728895678452 is a wasteful number, since it uses less digits than its factorization.

11728895678452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146746370 (or 1146746368 counting only the distinct ones).

The product of its digits is 541900800, while the sum is 73.

The spelling of 11728895678452 in words is "eleven trillion, seven hundred twenty-eight billion, eight hundred ninety-five million, six hundred seventy-eight thousand, four hundred fifty-two".