694340347277 has 2 divisors, whose sum is σ = 694340347278. Its totient is φ = 694340347276.

The previous prime is 694340347249. The next prime is 694340347339. The reversal of 694340347277 is 772743043496.

694340347277 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 404838240361 + 289502106916 = 636269^2 + 538054^2 .

It is a cyclic number.

It is not a de Polignac number, because 694340347277 - 2¹⁶ = 694340281741 is a prime.

It is a super-2 number, since 2×694340347277² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (694340347177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347170173638 + 347170173639.

It is an arithmetic number, because the mean of its divisors is an integer number (347170173639).

Almost surely, 2^694340347277 is an apocalyptic number.

It is an amenable number.

694340347277 is a deficient number, since it is larger than the sum of its proper divisors (1).

694340347277 is an equidigital number, since it uses as much as digits as its factorization.

694340347277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21337344, while the sum is 56.

The spelling of 694340347277 in words is "six hundred ninety-four billion, three hundred forty million, three hundred forty-seven thousand, two hundred seventy-seven".