74064472236257 has 2 divisors, whose sum is σ = 74064472236258. Its totient is φ = 74064472236256.

The previous prime is 74064472236229. The next prime is 74064472236289. The reversal of 74064472236257 is 75263227446047.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73005814390336 + 1058657845921 = 8544344^2 + 1028911^2 .

It is a cyclic number.

It is not a de Polignac number, because 74064472236257 - 2²² = 74064468041953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74064472236196 and 74064472236205.

It is not a weakly prime, because it can be changed into another prime (74064472236217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37032236118128 + 37032236118129.

It is an arithmetic number, because the mean of its divisors is an integer number (37032236118129).

Almost surely, 2^{74064472236257} is an apocalyptic number.

It is an amenable number.

74064472236257 is a deficient number, since it is larger than the sum of its proper divisors (1).

74064472236257 is an equidigital number, since it uses as much as digits as its factorization.

74064472236257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94832640, while the sum is 59.

The spelling of 74064472236257 in words is "seventy-four trillion, sixty-four billion, four hundred seventy-two million, two hundred thirty-six thousand, two hundred fifty-seven".