11717068639 has 2 divisors, whose sum is σ = 11717068640. Its totient is φ = 11717068638.

The previous prime is 11717068609. The next prime is 11717068697. The reversal of 11717068639 is 93686071711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11717068639 - 2⁷ = 11717068511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11717068592 and 11717068601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11717068609) 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, 5858534319 + 5858534320.

It is an arithmetic number, because the mean of its divisors is an integer number (5858534320).

Almost surely, 2^11717068639 is an apocalyptic number.

11717068639 is a deficient number, since it is larger than the sum of its proper divisors (1).

11717068639 is an equidigital number, since it uses as much as digits as its factorization.

11717068639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 49.

The spelling of 11717068639 in words is "eleven billion, seven hundred seventeen million, sixty-eight thousand, six hundred thirty-nine".