12749375893361 has 2 divisors, whose sum is σ = 12749375893362. Its totient is φ = 12749375893360.

The previous prime is 12749375893349. The next prime is 12749375893381. The reversal of 12749375893361 is 16339857394721.

12749375893361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12551856979600 + 197518913761 = 3542860^2 + 444431^2 .

It is a cyclic number.

It is not a de Polignac number, because 12749375893361 - 2¹⁸ = 12749375631217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12749375893291 and 12749375893300.

It is not a weakly prime, because it can be changed into another prime (12749375893381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6374687946680 + 6374687946681.

It is an arithmetic number, because the mean of its divisors is an integer number (6374687946681).

Almost surely, 2^{12749375893361} is an apocalyptic number.

It is an amenable number.

12749375893361 is a deficient number, since it is larger than the sum of its proper divisors (1).

12749375893361 is an equidigital number, since it uses as much as digits as its factorization.

12749375893361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 205752960, while the sum is 68.

The spelling of 12749375893361 in words is "twelve trillion, seven hundred forty-nine billion, three hundred seventy-five million, eight hundred ninety-three thousand, three hundred sixty-one".