73732792321 has 2 divisors, whose sum is σ = 73732792322. Its totient is φ = 73732792320.

The previous prime is 73732792313. The next prime is 73732792369. The reversal of 73732792321 is 12329723737.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72959952321 + 772840000 = 270111^2 + 27800^2 .

It is a cyclic number.

It is not a de Polignac number, because 73732792321 - 2³ = 73732792313 is a prime.

It is not a weakly prime, because it can be changed into another prime (73732792421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36866396160 + 36866396161.

It is an arithmetic number, because the mean of its divisors is an integer number (36866396161).

Almost surely, 2^73732792321 is an apocalyptic number.

It is an amenable number.

73732792321 is a deficient number, since it is larger than the sum of its proper divisors (1).

73732792321 is an equidigital number, since it uses as much as digits as its factorization.

73732792321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 666792, while the sum is 46.

The spelling of 73732792321 in words is "seventy-three billion, seven hundred thirty-two million, seven hundred ninety-two thousand, three hundred twenty-one".