68172310011 has 16 divisors (see below), whose sum is σ = 103646589984. Its totient is φ = 39484414464.

The previous prime is 68172309991. The next prime is 68172310013. The reversal of 68172310011 is 11001327186.

It is not a de Polignac number, because 68172310011 - 2¹¹ = 68172307963 is a prime.

It is a super-3 number, since 3×68172310011³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (68172310013) 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, 51411336 + ... + 51412661.

It is an arithmetic number, because the mean of its divisors is an integer number (6477911874).

Almost surely, 2^68172310011 is an apocalyptic number.

68172310011 is a deficient number, since it is larger than the sum of its proper divisors (35474279973).

68172310011 is a wasteful number, since it uses less digits than its factorization.

68172310011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102824030.

The product of its (nonzero) digits is 2016, while the sum is 30.

Adding to 68172310011 its reverse (11001327186), we get a palindrome (79173637197).

The spelling of 68172310011 in words is "sixty-eight billion, one hundred seventy-two million, three hundred ten thousand, eleven".