20452036834349 has 2 divisors, whose sum is σ = 20452036834350. Its totient is φ = 20452036834348.

The previous prime is 20452036834343. The next prime is 20452036834363. The reversal of 20452036834349 is 94343863025402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10272140380324 + 10179896454025 = 3205018^2 + 3190595^2 .

It is a cyclic number.

It is not a de Polignac number, because 20452036834349 - 2³² = 20447741867053 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20452036834349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20452036834343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10226018417174 + 10226018417175.

It is an arithmetic number, because the mean of its divisors is an integer number (10226018417175).

Almost surely, 2^{20452036834349} is an apocalyptic number.

It is an amenable number.

20452036834349 is a deficient number, since it is larger than the sum of its proper divisors (1).

20452036834349 is an equidigital number, since it uses as much as digits as its factorization.

20452036834349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14929920, while the sum is 53.

The spelling of 20452036834349 in words is "twenty trillion, four hundred fifty-two billion, thirty-six million, eight hundred thirty-four thousand, three hundred forty-nine".