1188279820339 has 2 divisors, whose sum is σ = 1188279820340. Its totient is φ = 1188279820338.

The previous prime is 1188279820291. The next prime is 1188279820423. The reversal of 1188279820339 is 9330289728811.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1188279820339 is a prime.

It is a super-2 number, since 2×1188279820339² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1188279824339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 594139910169 + 594139910170.

It is an arithmetic number, because the mean of its divisors is an integer number (594139910170).

Almost surely, 2^{1188279820339} is an apocalyptic number.

1188279820339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1188279820339 is an equidigital number, since it uses as much as digits as its factorization.

1188279820339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10450944, while the sum is 61.

The spelling of 1188279820339 in words is "one trillion, one hundred eighty-eight billion, two hundred seventy-nine million, eight hundred twenty thousand, three hundred thirty-nine".