694634289961 has 2 divisors, whose sum is σ = 694634289962. Its totient is φ = 694634289960.

The previous prime is 694634289901. The next prime is 694634289967. The reversal of 694634289961 is 169982436496.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 557979120400 + 136655169561 = 746980^2 + 369669^2 .

It is a cyclic number.

It is not a de Polignac number, because 694634289961 - 2³⁹ = 144878476073 is a prime.

It is not a weakly prime, because it can be changed into another prime (694634289967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347317144980 + 347317144981.

It is an arithmetic number, because the mean of its divisors is an integer number (347317144981).

Almost surely, 2^694634289961 is an apocalyptic number.

It is an amenable number.

694634289961 is a deficient number, since it is larger than the sum of its proper divisors (1).

694634289961 is an equidigital number, since it uses as much as digits as its factorization.

694634289961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120932352, while the sum is 67.

The spelling of 694634289961 in words is "six hundred ninety-four billion, six hundred thirty-four million, two hundred eighty-nine thousand, nine hundred sixty-one".