3744121666013 has 2 divisors, whose sum is σ = 3744121666014. Its totient is φ = 3744121666012.

The previous prime is 3744121666003. The next prime is 3744121666049. The reversal of 3744121666013 is 3106661214473.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2314667088409 + 1429454577604 = 1521403^2 + 1195598^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3744121666013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3744121666003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1872060833006 + 1872060833007.

It is an arithmetic number, because the mean of its divisors is an integer number (1872060833007).

Almost surely, 2^{3744121666013} is an apocalyptic number.

It is an amenable number.

3744121666013 is a deficient number, since it is larger than the sum of its proper divisors (1).

3744121666013 is an equidigital number, since it uses as much as digits as its factorization.

3744121666013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 44.

The spelling of 3744121666013 in words is "three trillion, seven hundred forty-four billion, one hundred twenty-one million, six hundred sixty-six thousand, thirteen".