73243634237 has 2 divisors, whose sum is σ = 73243634238. Its totient is φ = 73243634236.

The previous prime is 73243634221. The next prime is 73243634267.

73243634237 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48686863801 + 24556770436 = 220651^2 + 156706^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 73243634237 - 2⁴ = 73243634221 is a prime.

It is a super-3 number, since 3×73243634237³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73243634267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36621817118 + 36621817119.

It is an arithmetic number, because the mean of its divisors is an integer number (36621817119).

Almost surely, 2^73243634237 is an apocalyptic number.

It is an amenable number.

73243634237 is a deficient number, since it is larger than the sum of its proper divisors (1).

73243634237 is an equidigital number, since it uses as much as digits as its factorization.

73243634237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1524096, while the sum is 44.

The spelling of 73243634237 in words is "seventy-three billion, two hundred forty-three million, six hundred thirty-four thousand, two hundred thirty-seven".