694634289901 has 2 divisors, whose sum is σ = 694634289902. Its totient is φ = 694634289900.

The previous prime is 694634289893. The next prime is 694634289961. The reversal of 694634289901 is 109982436496.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 487167704676 + 207466585225 = 697974^2 + 455485^2 .

It is a cyclic number.

It is not a de Polignac number, because 694634289901 - 2³ = 694634289893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 694634289901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (694634289961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347317144950 + 347317144951.

It is an arithmetic number, because the mean of its divisors is an integer number (347317144951).

Almost surely, 2^694634289901 is an apocalyptic number.

It is an amenable number.

694634289901 is a deficient number, since it is larger than the sum of its proper divisors (1).

694634289901 is an equidigital number, since it uses as much as digits as its factorization.

694634289901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20155392, while the sum is 61.

The spelling of 694634289901 in words is "six hundred ninety-four billion, six hundred thirty-four million, two hundred eighty-nine thousand, nine hundred one".