1198117944242 has 6 divisors (see below), whose sum is σ = 1797179238333. Its totient is φ = 599058198132.

The previous prime is 1198117944239. The next prime is 1198117944263. The reversal of 1198117944242 is 2424497118911.

It can be written as a sum of positive squares in 2 ways, for example, as 1152099542881 + 46018401361 = 1073359^2 + 214519^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=773989.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1160984 + ... + 1934972.

Almost surely, 2^{1198117944242} is an apocalyptic number.

1198117944242 is a deficient number, since it is larger than the sum of its proper divisors (599061294091).

1198117944242 is an frugal number, since it uses more digits than its factorization.

1198117944242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547980 (or 773991 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 53.

The spelling of 1198117944242 in words is "one trillion, one hundred ninety-eight billion, one hundred seventeen million, nine hundred forty-four thousand, two hundred forty-two".