74814340217 has 2 divisors, whose sum is σ = 74814340218. Its totient is φ = 74814340216.

The previous prime is 74814340201. The next prime is 74814340247. The reversal of 74814340217 is 71204341847.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45618125056 + 29196215161 = 213584^2 + 170869^2 .

It is a cyclic number.

It is not a de Polignac number, because 74814340217 - 2⁴ = 74814340201 is a prime.

It is not a weakly prime, because it can be changed into another prime (74814340247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37407170108 + 37407170109.

It is an arithmetic number, because the mean of its divisors is an integer number (37407170109).

Almost surely, 2^74814340217 is an apocalyptic number.

It is an amenable number.

74814340217 is a deficient number, since it is larger than the sum of its proper divisors (1).

74814340217 is an equidigital number, since it uses as much as digits as its factorization.

74814340217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 150528, while the sum is 41.

The spelling of 74814340217 in words is "seventy-four billion, eight hundred fourteen million, three hundred forty thousand, two hundred seventeen".