68235066770 has 32 divisors (see below), whose sum is σ = 134766746352. Its totient is φ = 24719116032.

The previous prime is 68235066743. The next prime is 68235066787. The reversal of 68235066770 is 7766053286.

It can be written as a sum of positive squares in 8 ways, for example, as 46427751841 + 21807314929 = 215471^2 + 147673^2 .

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 15 ways as a sum of consecutive naturals, for example, 4944857 + ... + 4958636.

Almost surely, 2^68235066770 is an apocalyptic number.

68235066770 is a deficient number, since it is larger than the sum of its proper divisors (66531679582).

68235066770 is a wasteful number, since it uses less digits than its factorization.

68235066770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9903566.

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 68235066770 in words is "sixty-eight billion, two hundred thirty-five million, sixty-six thousand, seven hundred seventy".