1098347443209 has 12 divisors (see below), whose sum is σ = 1586513824116. Its totient is φ = 732226108032.

The previous prime is 1098347443199. The next prime is 1098347443231. The reversal of 1098347443209 is 9023447438901.

1098347443209 is a `hidden beast` number, since 1 + 0 + 98 + 347 + 4 + 4 + 3 + 209 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 886008038400 + 212339404809 = 941280^2 + 460803^2 .

It is not a de Polignac number, because 1098347443209 - 2²⁷ = 1098213225481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1098347443289) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1066557 + ... + 1825989.

It is an arithmetic number, because the mean of its divisors is an integer number (132209485343).

Almost surely, 2^{1098347443209} is an apocalyptic number.

It is an amenable number.

1098347443209 is a deficient number, since it is larger than the sum of its proper divisors (488166380907).

1098347443209 is a wasteful number, since it uses less digits than its factorization.

1098347443209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920136 (or 920133 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 1098347443209 in words is "one trillion, ninety-eight billion, three hundred forty-seven million, four hundred forty-three thousand, two hundred nine".