2042909349709 has 2 divisors, whose sum is σ = 2042909349710. Its totient is φ = 2042909349708.

The previous prime is 2042909349673. The next prime is 2042909349727. The reversal of 2042909349709 is 9079439092402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1508774935684 + 534134414025 = 1228322^2 + 730845^2 .

It is a cyclic number.

It is not a de Polignac number, because 2042909349709 - 2³¹ = 2040761866061 is a prime.

It is a super-2 number, since 2×2042909349709² (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 (2042909349769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021454674854 + 1021454674855.

It is an arithmetic number, because the mean of its divisors is an integer number (1021454674855).

Almost surely, 2^{2042909349709} is an apocalyptic number.

It is an amenable number.

2042909349709 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042909349709 is an equidigital number, since it uses as much as digits as its factorization.

2042909349709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8817984, while the sum is 58.

The spelling of 2042909349709 in words is "two trillion, forty-two billion, nine hundred nine million, three hundred forty-nine thousand, seven hundred nine".