1195643607749 has 2 divisors, whose sum is σ = 1195643607750. Its totient is φ = 1195643607748.

The previous prime is 1195643607713. The next prime is 1195643607761. The reversal of 1195643607749 is 9477063465911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 883477804225 + 312165803524 = 939935^2 + 558718^2 .

It is a cyclic number.

It is not a de Polignac number, because 1195643607749 - 2⁴⁰ = 96131979973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1195643607691 and 1195643607700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1195643607649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 597821803874 + 597821803875.

It is an arithmetic number, because the mean of its divisors is an integer number (597821803875).

Almost surely, 2^{1195643607749} is an apocalyptic number.

It is an amenable number.

1195643607749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1195643607749 is an equidigital number, since it uses as much as digits as its factorization.

1195643607749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34292160, while the sum is 62.

The spelling of 1195643607749 in words is "one trillion, one hundred ninety-five billion, six hundred forty-three million, six hundred seven thousand, seven hundred forty-nine".