73126226317 has 2 divisors, whose sum is σ = 73126226318. Its totient is φ = 73126226316.

The previous prime is 73126226311. The next prime is 73126226353. The reversal of 73126226317 is 71362262137.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64262757001 + 8863469316 = 253501^2 + 94146^2 .

It is a cyclic number.

It is not a de Polignac number, because 73126226317 - 2³ = 73126226309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73126226317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73126226311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36563113158 + 36563113159.

It is an arithmetic number, because the mean of its divisors is an integer number (36563113159).

Almost surely, 2^73126226317 is an apocalyptic number.

It is an amenable number.

73126226317 is a deficient number, since it is larger than the sum of its proper divisors (1).

73126226317 is an equidigital number, since it uses as much as digits as its factorization.

73126226317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 40.

The spelling of 73126226317 in words is "seventy-three billion, one hundred twenty-six million, two hundred twenty-six thousand, three hundred seventeen".