68207754278 has 16 divisors (see below), whose sum is σ = 105628338816. Its totient is φ = 32998648320.

The previous prime is 68207754253. The next prime is 68207754281. The reversal of 68207754278 is 87245770286.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335750 + ... + 499142.

It is an arithmetic number, because the mean of its divisors is an integer number (6601771176).

Almost surely, 2^68207754278 is an apocalyptic number.

68207754278 is a deficient number, since it is larger than the sum of its proper divisors (37420584538).

68207754278 is a wasteful number, since it uses less digits than its factorization.

68207754278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170159.

The product of its (nonzero) digits is 10536960, while the sum is 56.

The spelling of 68207754278 in words is "sixty-eight billion, two hundred seven million, seven hundred fifty-four thousand, two hundred seventy-eight".