74317372313 has 2 divisors, whose sum is σ = 74317372314. Its totient is φ = 74317372312.

The previous prime is 74317372303. The next prime is 74317372333. The reversal of 74317372313 is 31327371347.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60441239104 + 13876133209 = 245848^2 + 117797^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74317372313 is a prime.

It is not a weakly prime, because it can be changed into another prime (74317372303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37158686156 + 37158686157.

It is an arithmetic number, because the mean of its divisors is an integer number (37158686157).

Almost surely, 2^74317372313 is an apocalyptic number.

It is an amenable number.

74317372313 is a deficient number, since it is larger than the sum of its proper divisors (1).

74317372313 is an equidigital number, since it uses as much as digits as its factorization.

74317372313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 222264, while the sum is 41.

The spelling of 74317372313 in words is "seventy-four billion, three hundred seventeen million, three hundred seventy-two thousand, three hundred thirteen".