1867340674349 has 2 divisors, whose sum is σ = 1867340674350. Its totient is φ = 1867340674348.

The previous prime is 1867340674319. The next prime is 1867340674361. The reversal of 1867340674349 is 9434760437681.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1017865085449 + 849475588900 = 1008893^2 + 921670^2 .

It is a cyclic number.

It is not a de Polignac number, because 1867340674349 - 2¹⁶ = 1867340608813 is a prime.

It is a super-2 number, since 2×1867340674349² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1867340674291 and 1867340674300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1867340674319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 933670337174 + 933670337175.

It is an arithmetic number, because the mean of its divisors is an integer number (933670337175).

Almost surely, 2^{1867340674349} is an apocalyptic number.

It is an amenable number.

1867340674349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1867340674349 is an equidigital number, since it uses as much as digits as its factorization.

1867340674349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73156608, while the sum is 62.

The spelling of 1867340674349 in words is "one trillion, eight hundred sixty-seven billion, three hundred forty million, six hundred seventy-four thousand, three hundred forty-nine".