909465921449 has 2 divisors, whose sum is σ = 909465921450. Its totient is φ = 909465921448.

The previous prime is 909465921373. The next prime is 909465921467. The reversal of 909465921449 is 944129564909.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 474252595600 + 435213325849 = 688660^2 + 659707^2 .

It is a cyclic number.

It is not a de Polignac number, because 909465921449 - 2¹⁶ = 909465855913 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 = 909465921391 and 909465921400.

It is not a weakly prime, because it can be changed into another prime (909465921499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 454732960724 + 454732960725.

It is an arithmetic number, because the mean of its divisors is an integer number (454732960725).

Almost surely, 2^909465921449 is an apocalyptic number.

It is an amenable number.

909465921449 is a deficient number, since it is larger than the sum of its proper divisors (1).

909465921449 is an equidigital number, since it uses as much as digits as its factorization.

909465921449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25194240, while the sum is 62.

The spelling of 909465921449 in words is "nine hundred nine billion, four hundred sixty-five million, nine hundred twenty-one thousand, four hundred forty-nine".