1152446186909 has 2 divisors, whose sum is σ = 1152446186910. Its totient is φ = 1152446186908.

The previous prime is 1152446186897. The next prime is 1152446186959. The reversal of 1152446186909 is 9096816442511.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1102086338809 + 50359848100 = 1049803^2 + 224410^2 .

It is a cyclic number.

It is not a de Polignac number, because 1152446186909 - 2²⁴ = 1152429409693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1152446186959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576223093454 + 576223093455.

It is an arithmetic number, because the mean of its divisors is an integer number (576223093455).

Almost surely, 2^{1152446186909} is an apocalyptic number.

It is an amenable number.

1152446186909 is a deficient number, since it is larger than the sum of its proper divisors (1).

1152446186909 is an equidigital number, since it uses as much as digits as its factorization.

1152446186909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3732480, while the sum is 56.

The spelling of 1152446186909 in words is "one trillion, one hundred fifty-two billion, four hundred forty-six million, one hundred eighty-six thousand, nine hundred nine".