8197198495441 has 4 divisors (see below), whose sum is σ = 8197254140992. Its totient is φ = 8197142849892.

The previous prime is 8197198495439. The next prime is 8197198495457. The reversal of 8197198495441 is 1445948917918.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8197198495441 - 2¹ = 8197198495439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8197198496441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27601221 + ... + 27896626.

It is an arithmetic number, because the mean of its divisors is an integer number (2049313535248).

Almost surely, 2^{8197198495441} is an apocalyptic number.

It is an amenable number.

8197198495441 is a deficient number, since it is larger than the sum of its proper divisors (55645551).

8197198495441 is a wasteful number, since it uses less digits than its factorization.

8197198495441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55645550.

The product of its digits is 104509440, while the sum is 70.

The spelling of 8197198495441 in words is "eight trillion, one hundred ninety-seven billion, one hundred ninety-eight million, four hundred ninety-five thousand, four hundred forty-one".