68836884511 has 2 divisors, whose sum is σ = 68836884512. Its totient is φ = 68836884510.

The previous prime is 68836884503. The next prime is 68836884539. The reversal of 68836884511 is 11548863886.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68836884511 - 2³ = 68836884503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68836884811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34418442255 + 34418442256.

It is an arithmetic number, because the mean of its divisors is an integer number (34418442256).

Almost surely, 2^68836884511 is an apocalyptic number.

68836884511 is a deficient number, since it is larger than the sum of its proper divisors (1).

68836884511 is an equidigital number, since it uses as much as digits as its factorization.

68836884511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8847360, while the sum is 58.

The spelling of 68836884511 in words is "sixty-eight billion, eight hundred thirty-six million, eight hundred eighty-four thousand, five hundred eleven".