68120755998 has 32 divisors (see below), whose sum is σ = 144311406624. Its totient is φ = 21362967552.

The previous prime is 68120755987. The next prime is 68120756003. The reversal of 68120755998 is 89955702186.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139336 + ... + 394532.

It is an arithmetic number, because the mean of its divisors is an integer number (4509731457).

Almost surely, 2^68120755998 is an apocalyptic number.

68120755998 is an abundant number, since it is smaller than the sum of its proper divisors (76190650626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68120755998 is a wasteful number, since it uses less digits than its factorization.

68120755998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257836.

The product of its (nonzero) digits is 10886400, while the sum is 60.

The spelling of 68120755998 in words is "sixty-eight billion, one hundred twenty million, seven hundred fifty-five thousand, nine hundred ninety-eight".