917072454322 has 4 divisors (see below), whose sum is σ = 1375608681486. Its totient is φ = 458536227160.

The previous prime is 917072454271. The next prime is 917072454323. The reversal of 917072454322 is 223454270719.

It is a Cunningham number, because it is equal to 957639²+1.

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

It can be written as a sum of positive squares in only one way, i.e., 917072454321 + 1 = 957639^2 + 1^2 .

It is not an unprimeable number, because it can be changed into a prime (917072454323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 229268113579 + ... + 229268113582.

Almost surely, 2^917072454322 is an apocalyptic number.

917072454322 is a deficient number, since it is larger than the sum of its proper divisors (458536227164).

917072454322 is a wasteful number, since it uses less digits than its factorization.

917072454322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458536227163.

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 917072454322 in words is "nine hundred seventeen billion, seventy-two million, four hundred fifty-four thousand, three hundred twenty-two".