67390351349 has 2 divisors, whose sum is σ = 67390351350. Its totient is φ = 67390351348.

The previous prime is 67390351333. The next prime is 67390351363. The reversal of 67390351349 is 94315309376.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58754366449 + 8635984900 = 242393^2 + 92930^2 .

It is a cyclic number.

It is not a de Polignac number, because 67390351349 - 2⁴ = 67390351333 is a prime.

It is a super-2 number, since 2×67390351349² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 67390351297 and 67390351306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67390351949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33695175674 + 33695175675.

It is an arithmetic number, because the mean of its divisors is an integer number (33695175675).

Almost surely, 2^67390351349 is an apocalyptic number.

It is an amenable number.

67390351349 is a deficient number, since it is larger than the sum of its proper divisors (1).

67390351349 is an equidigital number, since it uses as much as digits as its factorization.

67390351349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1837080, while the sum is 50.

The spelling of 67390351349 in words is "sixty-seven billion, three hundred ninety million, three hundred fifty-one thousand, three hundred forty-nine".