343996677769 has 2 divisors, whose sum is σ = 343996677770. Its totient is φ = 343996677768.

The previous prime is 343996677767. The next prime is 343996677799. The reversal of 343996677769 is 967776699343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205771104400 + 138225573369 = 453620^2 + 371787^2 .

It is a cyclic number.

It is not a de Polignac number, because 343996677769 - 2¹ = 343996677767 is a prime.

It is a super-2 number, since 2×343996677769² (a number of 24 digits) contains 22 as substring.

Together with 343996677767, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 343996677695 and 343996677704.

It is not a weakly prime, because it can be changed into another prime (343996677763) 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, 171998338884 + 171998338885.

It is an arithmetic number, because the mean of its divisors is an integer number (171998338885).

Almost surely, 2^343996677769 is an apocalyptic number.

It is an amenable number.

343996677769 is a deficient number, since it is larger than the sum of its proper divisors (1).

343996677769 is an equidigital number, since it uses as much as digits as its factorization.

343996677769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944365472, while the sum is 76.

The spelling of 343996677769 in words is "three hundred forty-three billion, nine hundred ninety-six million, six hundred seventy-seven thousand, seven hundred sixty-nine".