197914617722 has 16 divisors (see below), whose sum is σ = 300124535040. Its totient is φ = 97876763712.

The previous prime is 197914617721. The next prime is 197914617749. The reversal of 197914617722 is 227716419791.

197914617722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (197914617721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 805868 + ... + 1022375.

It is an arithmetic number, because the mean of its divisors is an integer number (18757783440).

Almost surely, 2^197914617722 is an apocalyptic number.

197914617722 is a deficient number, since it is larger than the sum of its proper divisors (102209917318).

197914617722 is a wasteful number, since it uses less digits than its factorization.

197914617722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828837.

The product of its digits is 2667168, while the sum is 56.

The spelling of 197914617722 in words is "one hundred ninety-seven billion, nine hundred fourteen million, six hundred seventeen thousand, seven hundred twenty-two".