1912333632409 has 2 divisors, whose sum is σ = 1912333632410. Its totient is φ = 1912333632408.

The previous prime is 1912333632403. The next prime is 1912333632437. The reversal of 1912333632409 is 9042363332191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1139402535184 + 772931097225 = 1067428^2 + 879165^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1912333632409 is a prime.

It is not a weakly prime, because it can be changed into another prime (1912333632403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 956166816204 + 956166816205.

It is an arithmetic number, because the mean of its divisors is an integer number (956166816205).

Almost surely, 2^{1912333632409} is an apocalyptic number.

It is an amenable number.

1912333632409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1912333632409 is an equidigital number, since it uses as much as digits as its factorization.

1912333632409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 629856, while the sum is 46.

The spelling of 1912333632409 in words is "one trillion, nine hundred twelve billion, three hundred thirty-three million, six hundred thirty-two thousand, four hundred nine".