1549374148613 has 2 divisors, whose sum is σ = 1549374148614. Its totient is φ = 1549374148612.

The previous prime is 1549374148559. The next prime is 1549374148661. The reversal of 1549374148613 is 3168414739451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 789195926689 + 760178221924 = 888367^2 + 871882^2 .

It is a cyclic number.

It is not a de Polignac number, because 1549374148613 - 2¹⁶ = 1549374083077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1549374148213) 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, 774687074306 + 774687074307.

It is an arithmetic number, because the mean of its divisors is an integer number (774687074307).

Almost surely, 2^{1549374148613} is an apocalyptic number.

It is an amenable number.

1549374148613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1549374148613 is an equidigital number, since it uses as much as digits as its factorization.

1549374148613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8709120, while the sum is 56.

The spelling of 1549374148613 in words is "one trillion, five hundred forty-nine billion, three hundred seventy-four million, one hundred forty-eight thousand, six hundred thirteen".