73681302247 has 8 divisors (see below), whose sum is σ = 85024749056. Its totient is φ = 62542242072.

The previous prime is 73681302209. The next prime is 73681302271. The reversal of 73681302247 is 74220318637.

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 73681302247 - 2¹⁵ = 73681269479 is a prime.

It is a Lucas number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73681303247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51095883 + ... + 51097324.

It is an arithmetic number, because the mean of its divisors is an integer number (10628093632).

Almost surely, 2^73681302247 is an apocalyptic number.

73681302247 is a deficient number, since it is larger than the sum of its proper divisors (11343446809).

73681302247 is a wasteful number, since it uses less digits than its factorization.

73681302247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102193317.

The product of its (nonzero) digits is 338688, while the sum is 43.

The spelling of 73681302247 in words is "seventy-three billion, six hundred eighty-one million, three hundred two thousand, two hundred forty-seven".