691683341011 has 16 divisors (see below), whose sum is σ = 791857815840. Its totient is φ = 598884019200.

The previous prime is 691683341003. The next prime is 691683341023. The reversal of 691683341011 is 110143386196.

It is a cyclic number.

It is not a de Polignac number, because 691683341011 - 2³ = 691683341003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (691683348011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13838110 + ... + 13888003.

It is an arithmetic number, because the mean of its divisors is an integer number (49491113490).

Almost surely, 2^691683341011 is an apocalyptic number.

691683341011 is a deficient number, since it is larger than the sum of its proper divisors (100174474829).

691683341011 is a wasteful number, since it uses less digits than its factorization.

691683341011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27726246.

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 691683341011 in words is "six hundred ninety-one billion, six hundred eighty-three million, three hundred forty-one thousand, eleven".