1199489836379 has 2 divisors, whose sum is σ = 1199489836380. Its totient is φ = 1199489836378.

The previous prime is 1199489836343. The next prime is 1199489836421. The reversal of 1199489836379 is 9736389849911.

It is a weak prime.

It is an emirp because it is prime and its reverse (9736389849911) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1199489836379 is a prime.

It is not a weakly prime, because it can be changed into another prime (1199489836319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 599744918189 + 599744918190.

It is an arithmetic number, because the mean of its divisors is an integer number (599744918190).

Almost surely, 2^{1199489836379} is an apocalyptic number.

1199489836379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1199489836379 is an equidigital number, since it uses as much as digits as its factorization.

1199489836379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 634894848, while the sum is 77.

The spelling of 1199489836379 in words is "one trillion, one hundred ninety-nine billion, four hundred eighty-nine million, eight hundred thirty-six thousand, three hundred seventy-nine".