68300979077 has 2 divisors, whose sum is σ = 68300979078. Its totient is φ = 68300979076.

The previous prime is 68300979073. The next prime is 68300979113. The reversal of 68300979077 is 77097900386.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55695528001 + 12605451076 = 235999^2 + 112274^2 .

It is a cyclic number.

It is not a de Polignac number, because 68300979077 - 2² = 68300979073 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68300979073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34150489538 + 34150489539.

It is an arithmetic number, because the mean of its divisors is an integer number (34150489539).

Almost surely, 2^68300979077 is an apocalyptic number.

It is an amenable number.

68300979077 is a deficient number, since it is larger than the sum of its proper divisors (1).

68300979077 is an equidigital number, since it uses as much as digits as its factorization.

68300979077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4000752, while the sum is 56.

The spelling of 68300979077 in words is "sixty-eight billion, three hundred million, nine hundred seventy-nine thousand, seventy-seven".