68134644628 has 12 divisors (see below), whose sum is σ = 119949615072. Its totient is φ = 33863326040.

The previous prime is 68134644601. The next prime is 68134644661. The reversal of 68134644628 is 82644643186.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50998318 + ... + 50999653.

It is an arithmetic number, because the mean of its divisors is an integer number (9995801256).

Almost surely, 2^68134644628 is an apocalyptic number.

It is an amenable number.

68134644628 is a deficient number, since it is larger than the sum of its proper divisors (51814970444).

68134644628 is a wasteful number, since it uses less digits than its factorization.

68134644628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101998142 (or 101998140 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 52.

The spelling of 68134644628 in words is "sixty-eight billion, one hundred thirty-four million, six hundred forty-four thousand, six hundred twenty-eight".