197009922050 has 54 divisors (see below), whose sum is σ = 375839452827. Its totient is φ = 76831704000.

The previous prime is 197009922041. The next prime is 197009922071. The reversal of 197009922050 is 50229900791.

It is a happy number.

197009922050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 1239955369 + 195769966681 = 35213^2 + 442459^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=313855.

It is a super-2 number, since 2×197009922050² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 197009921992 and 197009922010.

It is an unprimeable number.

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 26 ways as a sum of consecutive naturals, for example, 128679785 + ... + 128681315.

Almost surely, 2^197009922050 is an apocalyptic number.

197009922050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197009922050 is a deficient number, since it is larger than the sum of its proper divisors (178829530777).

197009922050 is an frugal number, since it uses more digits than its factorization.

197009922050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3156 (or 1579 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 44.

The spelling of 197009922050 in words is "one hundred ninety-seven billion, nine million, nine hundred twenty-two thousand, fifty".