694634289893 has 2 divisors, whose sum is σ = 694634289894. Its totient is φ = 694634289892.

The previous prime is 694634289871. The next prime is 694634289901. The reversal of 694634289893 is 398982436496.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 519146188324 + 175488101569 = 720518^2 + 418913^2 .

It is a cyclic number.

It is not a de Polignac number, because 694634289893 - 2³⁰ = 693560548069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (694634289593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347317144946 + 347317144947.

It is an arithmetic number, because the mean of its divisors is an integer number (347317144947).

Almost surely, 2^694634289893 is an apocalyptic number.

It is an amenable number.

694634289893 is a deficient number, since it is larger than the sum of its proper divisors (1).

694634289893 is an equidigital number, since it uses as much as digits as its factorization.

694634289893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483729408, while the sum is 71.

The spelling of 694634289893 in words is "six hundred ninety-four billion, six hundred thirty-four million, two hundred eighty-nine thousand, eight hundred ninety-three".