68411439811 has 48 divisors (see below), whose sum is σ = 82580843520. Its totient is φ = 56162021760.

The previous prime is 68411439791. The next prime is 68411439841. The reversal of 68411439811 is 11893411486.

It is not a de Polignac number, because 68411439811 - 2¹⁷ = 68411308739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68411439841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24457465 + ... + 24460261.

It is an arithmetic number, because the mean of its divisors is an integer number (1720434240).

Almost surely, 2^68411439811 is an apocalyptic number.

68411439811 is a deficient number, since it is larger than the sum of its proper divisors (14169403709).

68411439811 is a wasteful number, since it uses less digits than its factorization.

68411439811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3116 (or 3103 counting only the distinct ones).

The product of its digits is 165888, while the sum is 46.

The spelling of 68411439811 in words is "sixty-eight billion, four hundred eleven million, four hundred thirty-nine thousand, eight hundred eleven".