1194218396808 has 256 divisors, whose sum is σ = 3274401715200. Its totient is φ = 361695559680.

The previous prime is 1194218396783. The next prime is 1194218396831. The reversal of 1194218396808 is 8086938124911.

It is a Cunningham number, because it is equal to 1092803²-1.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 249156460 + ... + 249161252.

It is an arithmetic number, because the mean of its divisors is an integer number (12790631700).

Almost surely, 2^{1194218396808} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1194218396808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1637200857600).

1194218396808 is an abundant number, since it is smaller than the sum of its proper divisors (2080183318392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1194218396808 is a wasteful number, since it uses less digits than its factorization.

1194218396808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5092 (or 5088 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 60.

The spelling of 1194218396808 in words is "one trillion, one hundred ninety-four billion, two hundred eighteen million, three hundred ninety-six thousand, eight hundred eight".