11709620539 has 2 divisors, whose sum is σ = 11709620540. Its totient is φ = 11709620538.

The previous prime is 11709620509. The next prime is 11709620567. The reversal of 11709620539 is 93502690711.

It is a strong prime.

It is an emirp because it is prime and its reverse (93502690711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11709620539 - 2⁷ = 11709620411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11709620495 and 11709620504.

It is not a weakly prime, because it can be changed into another prime (11709620509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5854810269 + 5854810270.

It is an arithmetic number, because the mean of its divisors is an integer number (5854810270).

Almost surely, 2^11709620539 is an apocalyptic number.

11709620539 is a deficient number, since it is larger than the sum of its proper divisors (1).

11709620539 is an equidigital number, since it uses as much as digits as its factorization.

11709620539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102060, while the sum is 43.

The spelling of 11709620539 in words is "eleven billion, seven hundred nine million, six hundred twenty thousand, five hundred thirty-nine".