73307266217 has 8 divisors (see below), whose sum is σ = 74321173512. Its totient is φ = 72299008000.

The previous prime is 73307266199. The next prime is 73307266237. The reversal of 73307266217 is 71266270337.

It can be written as a sum of positive squares in 4 ways, for example, as 61770143296 + 11537122921 = 248536^2 + 107411^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73307266217 - 2²⁰ = 73306217641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73307266237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1386134 + ... + 1438047.

It is an arithmetic number, because the mean of its divisors is an integer number (9290146689).

Almost surely, 2^73307266217 is an apocalyptic number.

It is an amenable number.

73307266217 is a deficient number, since it is larger than the sum of its proper divisors (1013907295).

73307266217 is a wasteful number, since it uses less digits than its factorization.

73307266217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2824539.

The product of its (nonzero) digits is 444528, while the sum is 44.

The spelling of 73307266217 in words is "seventy-three billion, three hundred seven million, two hundred sixty-six thousand, two hundred seventeen".