1189685939413 has 2 divisors, whose sum is σ = 1189685939414. Its totient is φ = 1189685939412.

The previous prime is 1189685939347. The next prime is 1189685939419. The reversal of 1189685939413 is 3149395869811.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1085549358609 + 104136580804 = 1041897^2 + 322702^2 .

It is a cyclic number.

It is not a de Polignac number, because 1189685939413 - 2¹³ = 1189685931221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1189685939419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 594842969706 + 594842969707.

It is an arithmetic number, because the mean of its divisors is an integer number (594842969707).

Almost surely, 2^{1189685939413} is an apocalyptic number.

It is an amenable number.

1189685939413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1189685939413 is an equidigital number, since it uses as much as digits as its factorization.

1189685939413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50388480, while the sum is 67.

The spelling of 1189685939413 in words is "one trillion, one hundred eighty-nine billion, six hundred eighty-five million, nine hundred thirty-nine thousand, four hundred thirteen".