68978386944001 has 16 divisors (see below), whose sum is σ = 70731240652800. Its totient is φ = 67228915438080.

The previous prime is 68978386943971. The next prime is 68978386944023. The reversal of 68978386944001 is 10044968387986.

It is a cyclic number.

It is not a de Polignac number, because 68978386944001 - 2¹¹ = 68978386941953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68978386944041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205349481 + ... + 205685113.

It is an arithmetic number, because the mean of its divisors is an integer number (4420702540800).

Almost surely, 2^{68978386944001} is an apocalyptic number.

It is an amenable number.

68978386944001 is a deficient number, since it is larger than the sum of its proper divisors (1752853708799).

68978386944001 is a wasteful number, since it uses less digits than its factorization.

68978386944001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340656.

The product of its (nonzero) digits is 501645312, while the sum is 73.

The spelling of 68978386944001 in words is "sixty-eight trillion, nine hundred seventy-eight billion, three hundred eighty-six million, nine hundred forty-four thousand, one".