3719945366129 has 2 divisors, whose sum is σ = 3719945366130. Its totient is φ = 3719945366128.

The previous prime is 3719945366119. The next prime is 3719945366171. The reversal of 3719945366129 is 9216635499173.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2012355030625 + 1707590335504 = 1418575^2 + 1306748^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3719945366129 is a prime.

It is not a weakly prime, because it can be changed into another prime (3719945366119) 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, 1859972683064 + 1859972683065.

It is an arithmetic number, because the mean of its divisors is an integer number (1859972683065).

Almost surely, 2^{3719945366129} is an apocalyptic number.

It is an amenable number.

3719945366129 is a deficient number, since it is larger than the sum of its proper divisors (1).

3719945366129 is an equidigital number, since it uses as much as digits as its factorization.

3719945366129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 66134880, while the sum is 65.

The spelling of 3719945366129 in words is "three trillion, seven hundred nineteen billion, nine hundred forty-five million, three hundred sixty-six thousand, one hundred twenty-nine".