68944644986 has 16 divisors (see below), whose sum is σ = 122003427840. Its totient is φ = 28594553040.

The previous prime is 68944644929. The next prime is 68944644997.

68944644986 is nontrivially palindromic in base 10.

It is a Curzon 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, 79428881 + ... + 79429748.

It is an arithmetic number, because the mean of its divisors is an integer number (7625214240).

Almost surely, 2^68944644986 is an apocalyptic number.

68944644986 is a deficient number, since it is larger than the sum of its proper divisors (53058782854).

68944644986 is a wasteful number, since it uses less digits than its factorization.

68944644986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158858669.

The product of its digits is 286654464, while the sum is 68.

The spelling of 68944644986 in words is "sixty-eight billion, nine hundred forty-four million, six hundred forty-four thousand, nine hundred eighty-six".