1198491718167 has 12 divisors (see below), whose sum is σ = 1731230984704. Its totient is φ = 798959272320.

The previous prime is 1198491718091. The next prime is 1198491718187. The reversal of 1198491718167 is 7618171948911.

1198491718167 is a `hidden beast` number, since 1 + 1 + 9 + 8 + 491 + 7 + 1 + 81 + 67 = 666.

It is not a de Polignac number, because 1198491718167 - 2¹¹ = 1198491716119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1198491718187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2717434 + ... + 3127527.

Almost surely, 2^{1198491718167} is an apocalyptic number.

1198491718167 is a deficient number, since it is larger than the sum of its proper divisors (532739266537).

1198491718167 is a wasteful number, since it uses less digits than its factorization.

1198491718167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5867750 (or 5867747 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 63.

The spelling of 1198491718167 in words is "one trillion, one hundred ninety-eight billion, four hundred ninety-one million, seven hundred eighteen thousand, one hundred sixty-seven".