68346787311 has 16 divisors (see below), whose sum is σ = 110459454720. Its totient is φ = 41422295160.

The previous prime is 68346787309. The next prime is 68346787321. The reversal of 68346787311 is 11378764386.

It is not a de Polignac number, because 68346787311 - 2¹ = 68346787309 is a prime.

It is a super-2 number, since 2×68346787311² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68346787321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115061635 + ... + 115062228.

It is an arithmetic number, because the mean of its divisors is an integer number (6903715920).

Almost surely, 2^68346787311 is an apocalyptic number.

68346787311 is a deficient number, since it is larger than the sum of its proper divisors (42112667409).

68346787311 is a wasteful number, since it uses less digits than its factorization.

68346787311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230123883 (or 230123877 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The spelling of 68346787311 in words is "sixty-eight billion, three hundred forty-six million, seven hundred eighty-seven thousand, three hundred eleven".