12685796968965 has 16 divisors (see below), whose sum is σ = 21179765374848. Its totient is φ = 6471594975296.

The previous prime is 12685796968963. The next prime is 12685796968973. The reversal of 12685796968965 is 56986969758621.

It is a cyclic number.

It is not a de Polignac number, because 12685796968965 - 2¹ = 12685796968963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12685796968961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18385212654 + ... + 18385213343.

It is an arithmetic number, because the mean of its divisors is an integer number (1323735335928).

Almost surely, 2^{12685796968965} is an apocalyptic number.

12685796968965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12685796968965 is a deficient number, since it is larger than the sum of its proper divisors (8493968405883).

12685796968965 is a wasteful number, since it uses less digits than its factorization.

12685796968965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36770426028.

The product of its digits is 21163161600, while the sum is 87.

The spelling of 12685796968965 in words is "twelve trillion, six hundred eighty-five billion, seven hundred ninety-six million, nine hundred sixty-eight thousand, nine hundred sixty-five".