74513812273 has 2 divisors, whose sum is σ = 74513812274. Its totient is φ = 74513812272.

The previous prime is 74513812201. The next prime is 74513812279. The reversal of 74513812273 is 37221831547.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39747599424 + 34766212849 = 199368^2 + 186457^2 .

It is a cyclic number.

It is not a de Polignac number, because 74513812273 - 2⁹ = 74513811761 is a prime.

It is not a weakly prime, because it can be changed into another prime (74513812279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37256906136 + 37256906137.

It is an arithmetic number, because the mean of its divisors is an integer number (37256906137).

Almost surely, 2^74513812273 is an apocalyptic number.

It is an amenable number.

74513812273 is a deficient number, since it is larger than the sum of its proper divisors (1).

74513812273 is an equidigital number, since it uses as much as digits as its factorization.

74513812273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 43.

The spelling of 74513812273 in words is "seventy-four billion, five hundred thirteen million, eight hundred twelve thousand, two hundred seventy-three".