7751380221313 has 2 divisors, whose sum is σ = 7751380221314. Its totient is φ = 7751380221312.

The previous prime is 7751380221271. The next prime is 7751380221317. The reversal of 7751380221313 is 3131220831577.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5078456052849 + 2672924168464 = 2253543^2 + 1634908^2 .

It is a cyclic number.

It is not a de Polignac number, because 7751380221313 - 2⁴¹ = 5552356965761 is a prime.

It is a super-3 number, since 3×7751380221313³ (a number of 40 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7751380221313.

It is not a weakly prime, because it can be changed into another prime (7751380221317) 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, 3875690110656 + 3875690110657.

It is an arithmetic number, because the mean of its divisors is an integer number (3875690110657).

Almost surely, 2^{7751380221313} is an apocalyptic number.

It is an amenable number.

7751380221313 is a deficient number, since it is larger than the sum of its proper divisors (1).

7751380221313 is an equidigital number, since it uses as much as digits as its factorization.

7751380221313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 7751380221313 in words is "seven trillion, seven hundred fifty-one billion, three hundred eighty million, two hundred twenty-one thousand, three hundred thirteen".