268005871678 has 16 divisors (see below), whose sum is σ = 415883522880. Its totient is φ = 129378305056.

The previous prime is 268005871643. The next prime is 268005871697. The reversal of 268005871678 is 876178500862.

It is a happy number.

268005871678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (58).

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 7 ways as a sum of consecutive naturals, for example, 3416100 + ... + 3493672.

It is an arithmetic number, because the mean of its divisors is an integer number (25992720180).

Almost surely, 2^268005871678 is an apocalyptic number.

268005871678 is a deficient number, since it is larger than the sum of its proper divisors (147877651202).

268005871678 is a wasteful number, since it uses less digits than its factorization.

268005871678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137171.

The product of its (nonzero) digits is 9031680, while the sum is 58.

The spelling of 268005871678 in words is "two hundred sixty-eight billion, five million, eight hundred seventy-one thousand, six hundred seventy-eight".