78835573126073 has 2 divisors, whose sum is σ = 78835573126074. Its totient is φ = 78835573126072.

The previous prime is 78835573126069. The next prime is 78835573126081. The reversal of 78835573126073 is 37062137553887.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57343846695184 + 21491726430889 = 7572572^2 + 4635917^2 .

It is a cyclic number.

It is not a de Polignac number, because 78835573126073 - 2² = 78835573126069 is a prime.

It is not a weakly prime, because it can be changed into another prime (78835573125073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39417786563036 + 39417786563037.

It is an arithmetic number, because the mean of its divisors is an integer number (39417786563037).

Almost surely, 2^{78835573126073} is an apocalyptic number.

It is an amenable number.

78835573126073 is a deficient number, since it is larger than the sum of its proper divisors (1).

78835573126073 is an equidigital number, since it uses as much as digits as its factorization.

78835573126073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 177811200, while the sum is 65.

The spelling of 78835573126073 in words is "seventy-eight trillion, eight hundred thirty-five billion, five hundred seventy-three million, one hundred twenty-six thousand, seventy-three".