999998654211119 has 2 divisors, whose sum is σ = 999998654211120. Its totient is φ = 999998654211118.

The previous prime is 999998654211101. The next prime is 999998654211199. The reversal of 999998654211119 is 911112456899999.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999998654211119 is a prime.

It is a super-2 number, since 2×999998654211119² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999998654211199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499999327105559 + 499999327105560.

It is an arithmetic number, because the mean of its divisors is an integer number (499999327105560).

Almost surely, 2^{999998654211119} is an apocalyptic number.

999998654211119 is a deficient number, since it is larger than the sum of its proper divisors (1).

999998654211119 is an equidigital number, since it uses as much as digits as its factorization.

999998654211119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1020366720, while the sum is 83.

The spelling of 999998654211119 in words is "nine hundred ninety-nine trillion, nine hundred ninety-eight billion, six hundred fifty-four million, two hundred eleven thousand, one hundred nineteen".