1343063957777 has 2 divisors, whose sum is σ = 1343063957778. Its totient is φ = 1343063957776.

The previous prime is 1343063957717. The next prime is 1343063957779. The reversal of 1343063957777 is 7777593603431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1120276181761 + 222787776016 = 1058431^2 + 472004^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1343063957777 is a prime.

Together with 1343063957779, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1343063957779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671531978888 + 671531978889.

It is an arithmetic number, because the mean of its divisors is an integer number (671531978889).

Almost surely, 2^{1343063957777} is an apocalyptic number.

It is an amenable number.

1343063957777 is a deficient number, since it is larger than the sum of its proper divisors (1).

1343063957777 is an equidigital number, since it uses as much as digits as its factorization.

1343063957777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70013160, while the sum is 62.

The spelling of 1343063957777 in words is "one trillion, three hundred forty-three billion, sixty-three million, nine hundred fifty-seven thousand, seven hundred seventy-seven".