7813319619349 has 2 divisors, whose sum is σ = 7813319619350. Its totient is φ = 7813319619348.

The previous prime is 7813319619319. The next prime is 7813319619359. The reversal of 7813319619349 is 9439169133187.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5696250969124 + 2117068650225 = 2386682^2 + 1455015^2 .

It is a cyclic number.

It is not a de Polignac number, because 7813319619349 - 2²³ = 7813311230741 is a prime.

It is a super-2 number, since 2×7813319619349² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7813319619319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3906659809674 + 3906659809675.

It is an arithmetic number, because the mean of its divisors is an integer number (3906659809675).

Almost surely, 2^{7813319619349} is an apocalyptic number.

It is an amenable number.

7813319619349 is a deficient number, since it is larger than the sum of its proper divisors (1).

7813319619349 is an equidigital number, since it uses as much as digits as its factorization.

7813319619349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26453952, while the sum is 64.

The spelling of 7813319619349 in words is "seven trillion, eight hundred thirteen billion, three hundred nineteen million, six hundred nineteen thousand, three hundred forty-nine".