691068444922 has 8 divisors (see below), whose sum is σ = 1037697287616. Its totient is φ = 345169349052.

The previous prime is 691068444919. The next prime is 691068444947. The reversal of 691068444922 is 229444860196.

691068444922 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×691068444922² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182434338 + ... + 182438125.

It is an arithmetic number, because the mean of its divisors is an integer number (129712160952).

Almost surely, 2^691068444922 is an apocalyptic number.

691068444922 is a deficient number, since it is larger than the sum of its proper divisors (346628842694).

691068444922 is a wasteful number, since it uses less digits than its factorization.

691068444922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364873412.

The product of its (nonzero) digits is 5971968, while the sum is 55.

The spelling of 691068444922 in words is "six hundred ninety-one billion, sixty-eight million, four hundred forty-four thousand, nine hundred twenty-two".