73845041273 has 2 divisors, whose sum is σ = 73845041274. Its totient is φ = 73845041272.

The previous prime is 73845041233. The next prime is 73845041339. The reversal of 73845041273 is 37214054837.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61319626384 + 12525414889 = 247628^2 + 111917^2 .

It is an emirp because it is prime and its reverse (37214054837) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73845041273 is a prime.

It is a super-2 number, since 2×73845041273² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73845041233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36922520636 + 36922520637.

It is an arithmetic number, because the mean of its divisors is an integer number (36922520637).

Almost surely, 2^73845041273 is an apocalyptic number.

It is an amenable number.

73845041273 is a deficient number, since it is larger than the sum of its proper divisors (1).

73845041273 is an equidigital number, since it uses as much as digits as its factorization.

73845041273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 73845041273 in words is "seventy-three billion, eight hundred forty-five million, forty-one thousand, two hundred seventy-three".