68136811448 has 16 divisors (see below), whose sum is σ = 130167022680. Its totient is φ = 33425605408.

The previous prime is 68136811417. The next prime is 68136811451. The reversal of 68136811448 is 84411863186.

It is a junction number, because it is equal to n+sod(n) for n = 68136811396 and 68136811405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80349590 + ... + 80350437.

Almost surely, 2^68136811448 is an apocalyptic number.

It is an amenable number.

68136811448 is a deficient number, since it is larger than the sum of its proper divisors (62030211232).

68136811448 is a wasteful number, since it uses less digits than its factorization.

68136811448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160700086 (or 160700082 counting only the distinct ones).

The product of its digits is 884736, while the sum is 50.

The spelling of 68136811448 in words is "sixty-eight billion, one hundred thirty-six million, eight hundred eleven thousand, four hundred forty-eight".