694340347339 has 2 divisors, whose sum is σ = 694340347340. Its totient is φ = 694340347338.

The previous prime is 694340347277. The next prime is 694340347369. The reversal of 694340347339 is 933743043496.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 694340347339 - 2¹⁵ = 694340314571 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 694340347339.

It is not a weakly prime, because it can be changed into another prime (694340347369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347170173669 + 347170173670.

It is an arithmetic number, because the mean of its divisors is an integer number (347170173670).

Almost surely, 2^694340347339 is an apocalyptic number.

694340347339 is a deficient number, since it is larger than the sum of its proper divisors (1).

694340347339 is an equidigital number, since it uses as much as digits as its factorization.

694340347339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17635968, while the sum is 55.

The spelling of 694340347339 in words is "six hundred ninety-four billion, three hundred forty million, three hundred forty-seven thousand, three hundred thirty-nine".