1098867896309 has 2 divisors, whose sum is σ = 1098867896310. Its totient is φ = 1098867896308.

The previous prime is 1098867896279. The next prime is 1098867896363. The reversal of 1098867896309 is 9036987688901.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 748090066084 + 350777830225 = 864922^2 + 592265^2 .

It is an emirp because it is prime and its reverse (9036987688901) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1098867896309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1098867898309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549433948154 + 549433948155.

It is an arithmetic number, because the mean of its divisors is an integer number (549433948155).

Almost surely, 2^{1098867896309} is an apocalyptic number.

It is an amenable number.

1098867896309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1098867896309 is an equidigital number, since it uses as much as digits as its factorization.

1098867896309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282175488, while the sum is 74.

The spelling of 1098867896309 in words is "one trillion, ninety-eight billion, eight hundred sixty-seven million, eight hundred ninety-six thousand, three hundred nine".