73309636313 has 2 divisors, whose sum is σ = 73309636314. Its totient is φ = 73309636312.

The previous prime is 73309636261. The next prime is 73309636321. The reversal of 73309636313 is 31363690337.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59033449024 + 14276187289 = 242968^2 + 119483^2 .

It is a cyclic number.

It is not a de Polignac number, because 73309636313 - 2⁶ = 73309636249 is a prime.

It is not a weakly prime, because it can be changed into another prime (73309636343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36654818156 + 36654818157.

It is an arithmetic number, because the mean of its divisors is an integer number (36654818157).

Almost surely, 2^73309636313 is an apocalyptic number.

It is an amenable number.

73309636313 is a deficient number, since it is larger than the sum of its proper divisors (1).

73309636313 is an equidigital number, since it uses as much as digits as its factorization.

73309636313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 551124, while the sum is 44.

The spelling of 73309636313 in words is "seventy-three billion, three hundred nine million, six hundred thirty-six thousand, three hundred thirteen".