7731553122413 has 2 divisors, whose sum is σ = 7731553122414. Its totient is φ = 7731553122412.

The previous prime is 7731553122343. The next prime is 7731553122421. The reversal of 7731553122413 is 3142213551377.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7731052347529 + 500774884 = 2780477^2 + 22378^2 .

It is a cyclic number.

It is not a de Polignac number, because 7731553122413 - 2⁸ = 7731553122157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7731553122463) 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, 3865776561206 + 3865776561207.

It is an arithmetic number, because the mean of its divisors is an integer number (3865776561207).

Almost surely, 2^{7731553122413} is an apocalyptic number.

It is an amenable number.

7731553122413 is a deficient number, since it is larger than the sum of its proper divisors (1).

7731553122413 is an equidigital number, since it uses as much as digits as its factorization.

7731553122413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 529200, while the sum is 44.

The spelling of 7731553122413 in words is "seven trillion, seven hundred thirty-one billion, five hundred fifty-three million, one hundred twenty-two thousand, four hundred thirteen".