23686736349968 has 10 divisors (see below), whose sum is σ = 45893051678094. Its totient is φ = 11843368174976.

The previous prime is 23686736349923. The next prime is 23686736349977. The reversal of 23686736349968 is 86994363768632.

It can be written as a sum of positive squares in only one way, i.e., 18921212421904 + 4765523928064 = 4349852^2 + 2183008^2 .

It is a super-2 number, since 2×23686736349968² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23686736349892 and 23686736349901.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 740210510921 + ... + 740210510952.

Almost surely, 2^{23686736349968} is an apocalyptic number.

It is an amenable number.

23686736349968 is a deficient number, since it is larger than the sum of its proper divisors (22206315328126).

23686736349968 is a wasteful number, since it uses less digits than its factorization.

23686736349968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480421021881 (or 1480421021875 counting only the distinct ones).

The product of its digits is 10158317568, while the sum is 80.

The spelling of 23686736349968 in words is "twenty-three trillion, six hundred eighty-six billion, seven hundred thirty-six million, three hundred forty-nine thousand, nine hundred sixty-eight".