68811413236 has 6 divisors (see below), whose sum is σ = 120419973170. Its totient is φ = 34405706616.

The previous prime is 68811413161. The next prime is 68811413239. The reversal of 68811413236 is 63231411886.

It can be written as a sum of positive squares in only one way, i.e., 68764572900 + 46840336 = 262230^2 + 6844^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68811413192 and 68811413201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68811413239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8601426651 + ... + 8601426658.

Almost surely, 2^68811413236 is an apocalyptic number.

It is an amenable number.

68811413236 is a deficient number, since it is larger than the sum of its proper divisors (51608559934).

68811413236 is a wasteful number, since it uses less digits than its factorization.

68811413236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17202853313 (or 17202853311 counting only the distinct ones).

The product of its digits is 165888, while the sum is 43.

The spelling of 68811413236 in words is "sixty-eight billion, eight hundred eleven million, four hundred thirteen thousand, two hundred thirty-six".