1098851909711 has 2 divisors, whose sum is σ = 1098851909712. Its totient is φ = 1098851909710.

The previous prime is 1098851909689. The next prime is 1098851909773. The reversal of 1098851909711 is 1179091588901.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1098851909711 is a prime.

It is a super-2 number, since 2×1098851909711² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1098851909411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549425954855 + 549425954856.

It is an arithmetic number, because the mean of its divisors is an integer number (549425954856).

Almost surely, 2^{1098851909711} is an apocalyptic number.

1098851909711 is a deficient number, since it is larger than the sum of its proper divisors (1).

1098851909711 is an equidigital number, since it uses as much as digits as its factorization.

1098851909711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1632960, while the sum is 59.

The spelling of 1098851909711 in words is "one trillion, ninety-eight billion, eight hundred fifty-one million, nine hundred nine thousand, seven hundred eleven".