74722662317 has 4 divisors (see below), whose sum is σ = 74728179516. Its totient is φ = 74717145120.

The previous prime is 74722662307. The next prime is 74722662331. The reversal of 74722662317 is 71326622747.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35053575076 + 39669087241 = 187226^2 + 199171^2 .

It is a cyclic number.

It is not a de Polignac number, because 74722662317 - 2⁶ = 74722662253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74722662307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2738234 + ... + 2765387.

It is an arithmetic number, because the mean of its divisors is an integer number (18682044879).

Almost surely, 2^74722662317 is an apocalyptic number.

It is an amenable number.

74722662317 is a deficient number, since it is larger than the sum of its proper divisors (5517199).

74722662317 is a wasteful number, since it uses less digits than its factorization.

74722662317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5517198.

The product of its digits is 1185408, while the sum is 47.

The spelling of 74722662317 in words is "seventy-four billion, seven hundred twenty-two million, six hundred sixty-two thousand, three hundred seventeen".