1098204441097 has 8 divisors (see below), whose sum is σ = 1165647753000. Its totient is φ = 1031077023744.

The previous prime is 1098204441023. The next prime is 1098204441161. The reversal of 1098204441097 is 7901444028901.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 691793091081 + 406411350016 = 831741^2 + 637504^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-1098204441097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1098204441097.

It is not an unprimeable number, because it can be changed into a prime (1098204441197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78966472 + ... + 78980377.

It is an arithmetic number, because the mean of its divisors is an integer number (145705969125).

Almost surely, 2^{1098204441097} is an apocalyptic number.

1098204441097 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1098204441097 is a deficient number, since it is larger than the sum of its proper divisors (67443311903).

1098204441097 is a wasteful number, since it uses less digits than its factorization.

1098204441097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157947275.

The product of its (nonzero) digits is 580608, while the sum is 49.

Adding to 1098204441097 its reverse (7901444028901), we get a palindrome (8999648469998).

The spelling of 1098204441097 in words is "one trillion, ninety-eight billion, two hundred four million, four hundred forty-one thousand, ninety-seven".