10945421706409 has 2 divisors, whose sum is σ = 10945421706410. Its totient is φ = 10945421706408.

The previous prime is 10945421706379. The next prime is 10945421706433. The reversal of 10945421706409 is 90460712454901.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6328510016409 + 4616911690000 = 2515653^2 + 2148700^2 .

It is a cyclic number.

It is not a de Polignac number, because 10945421706409 - 2³⁵ = 10911061968041 is a prime.

It is a super-2 number, since 2×10945421706409² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10945421706809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5472710853204 + 5472710853205.

It is an arithmetic number, because the mean of its divisors is an integer number (5472710853205).

Almost surely, 2^{10945421706409} is an apocalyptic number.

It is an amenable number.

10945421706409 is a deficient number, since it is larger than the sum of its proper divisors (1).

10945421706409 is an equidigital number, since it uses as much as digits as its factorization.

10945421706409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 10945421706409 in words is "ten trillion, nine hundred forty-five billion, four hundred twenty-one million, seven hundred six thousand, four hundred nine".