197944818441 has 64 divisors (see below), whose sum is σ = 288433716480. Its totient is φ = 120332943360.

The previous prime is 197944818437. The next prime is 197944818451. The reversal of 197944818441 is 144818449791.

197944818441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 197944818441 - 2² = 197944818437 is a prime.

It is a super-2 number, since 2×197944818441² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (197944818431) 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 63 ways as a sum of consecutive naturals, for example, 61529265 + ... + 61532481.

It is an arithmetic number, because the mean of its divisors is an integer number (4506776820).

Almost surely, 2^197944818441 is an apocalyptic number.

It is an amenable number.

197944818441 is a deficient number, since it is larger than the sum of its proper divisors (90488898039).

197944818441 is a wasteful number, since it uses less digits than its factorization.

197944818441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3626.

The product of its digits is 9289728, while the sum is 60.

The spelling of 197944818441 in words is "one hundred ninety-seven billion, nine hundred forty-four million, eight hundred eighteen thousand, four hundred forty-one".