68000068145 has 16 divisors (see below), whose sum is σ = 85934830080. Its totient is φ = 51512889600.

The previous prime is 68000068139. The next prime is 68000068181. The reversal of 68000068145 is 54186000086.

It is not a de Polignac number, because 68000068145 - 2¹² = 68000064049 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 68000068099 and 68000068108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39680 + ... + 370910.

It is an arithmetic number, because the mean of its divisors is an integer number (5370926880).

Almost surely, 2^68000068145 is an apocalyptic number.

It is an amenable number.

68000068145 is a deficient number, since it is larger than the sum of its proper divisors (17934761935).

68000068145 is a wasteful number, since it uses less digits than its factorization.

68000068145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333416.

The product of its (nonzero) digits is 46080, while the sum is 38.

The spelling of 68000068145 in words is "sixty-eight billion, sixty-eight thousand, one hundred forty-five".