68611796017 has 16 divisors (see below), whose sum is σ = 74432183040. Its totient is φ = 63003296512.

The previous prime is 68611795979. The next prime is 68611796027. The reversal of 68611796017 is 71069711686.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68611796017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68611796027) 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, 51433 + ... + 373990.

It is an arithmetic number, because the mean of its divisors is an integer number (4652011440).

Almost surely, 2^68611796017 is an apocalyptic number.

It is an amenable number.

68611796017 is a deficient number, since it is larger than the sum of its proper divisors (5820387023).

68611796017 is a wasteful number, since it uses less digits than its factorization.

68611796017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425672.

The product of its (nonzero) digits is 762048, while the sum is 52.

It can be divided in two parts, 68 and 611796017, that multiplied together give a square (41602129156 = 203966²).

The spelling of 68611796017 in words is "sixty-eight billion, six hundred eleven million, seven hundred ninety-six thousand, seventeen".