1040909569949 has 2 divisors, whose sum is σ = 1040909569950. Its totient is φ = 1040909569948.

The previous prime is 1040909569877. The next prime is 1040909569967. The reversal of 1040909569949 is 9499659090401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1040746828900 + 162741049 = 1020170^2 + 12757^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1040909569949 is a prime.

It is a super-2 number, since 2×1040909569949² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040909562949) 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, 520454784974 + 520454784975.

It is an arithmetic number, because the mean of its divisors is an integer number (520454784975).

Almost surely, 2^{1040909569949} is an apocalyptic number.

It is an amenable number.

1040909569949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040909569949 is an equidigital number, since it uses as much as digits as its factorization.

1040909569949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28343520, while the sum is 65.

The spelling of 1040909569949 in words is "one trillion, forty billion, nine hundred nine million, five hundred sixty-nine thousand, nine hundred forty-nine".