73318080281 has 2 divisors, whose sum is σ = 73318080282. Its totient is φ = 73318080280.

The previous prime is 73318080271. The next prime is 73318080299. The reversal of 73318080281 is 18208081337.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36677995225 + 36640085056 = 191515^2 + 191416^2 .

It is a cyclic number.

It is not a de Polignac number, because 73318080281 - 2²² = 73313885977 is a prime.

It is a super-2 number, since 2×73318080281² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73318080271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36659040140 + 36659040141.

It is an arithmetic number, because the mean of its divisors is an integer number (36659040141).

Almost surely, 2^73318080281 is an apocalyptic number.

It is an amenable number.

73318080281 is a deficient number, since it is larger than the sum of its proper divisors (1).

73318080281 is an equidigital number, since it uses as much as digits as its factorization.

73318080281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 41.

The spelling of 73318080281 in words is "seventy-three billion, three hundred eighteen million, eighty thousand, two hundred eighty-one".