1198569808379 has 2 divisors, whose sum is σ = 1198569808380. Its totient is φ = 1198569808378.

The previous prime is 1198569808349. The next prime is 1198569808391. The reversal of 1198569808379 is 9738089658911.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1198569808379 - 2²⁴ = 1198553031163 is a prime.

It is not a weakly prime, because it can be changed into another prime (1198569808349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 599284904189 + 599284904190.

It is an arithmetic number, because the mean of its divisors is an integer number (599284904190).

Almost surely, 2^{1198569808379} is an apocalyptic number.

1198569808379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1198569808379 is an equidigital number, since it uses as much as digits as its factorization.

1198569808379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 235146240, while the sum is 74.

The spelling of 1198569808379 in words is "one trillion, one hundred ninety-eight billion, five hundred sixty-nine million, eight hundred eight thousand, three hundred seventy-nine".