1362611640749 has 2 divisors, whose sum is σ = 1362611640750. Its totient is φ = 1362611640748.

The previous prime is 1362611640721. The next prime is 1362611640779. The reversal of 1362611640749 is 9470461162631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 971634061225 + 390977579524 = 985715^2 + 625282^2 .

It is a cyclic number.

It is not a de Polignac number, because 1362611640749 - 2³² = 1358316673453 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1362611640697 and 1362611640706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1362611640779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 681305820374 + 681305820375.

It is an arithmetic number, because the mean of its divisors is an integer number (681305820375).

Almost surely, 2^{1362611640749} is an apocalyptic number.

It is an amenable number.

1362611640749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1362611640749 is an equidigital number, since it uses as much as digits as its factorization.

1362611640749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 1362611640749 in words is "one trillion, three hundred sixty-two billion, six hundred eleven million, six hundred forty thousand, seven hundred forty-nine".