1098446469149 has 2 divisors, whose sum is σ = 1098446469150. Its totient is φ = 1098446469148.

The previous prime is 1098446469049. The next prime is 1098446469173. The reversal of 1098446469149 is 9419646448901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 971555205625 + 126891263524 = 985675^2 + 356218^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1098446469149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1098446469049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549223234574 + 549223234575.

It is an arithmetic number, because the mean of its divisors is an integer number (549223234575).

Almost surely, 2^{1098446469149} is an apocalyptic number.

It is an amenable number.

1098446469149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1098446469149 is an equidigital number, since it uses as much as digits as its factorization.

1098446469149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53747712, while the sum is 65.

The spelling of 1098446469149 in words is "one trillion, ninety-eight billion, four hundred forty-six million, four hundred sixty-nine thousand, one hundred forty-nine".