322645490971 has 4 divisors (see below), whose sum is σ = 322804510000. Its totient is φ = 322486471944.

The previous prime is 322645490963. The next prime is 322645490977. The reversal of 322645490971 is 179094546223.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 179094546223 = 23 ⋅7786719401.

It is a cyclic number.

It is not a de Polignac number, because 322645490971 - 2³ = 322645490963 is a prime.

It is a super-2 number, since 2×322645490971² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (322645490977) 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 in 3 ways as a sum of consecutive naturals, for example, 79506471 + ... + 79510528.

It is an arithmetic number, because the mean of its divisors is an integer number (80701127500).

Almost surely, 2^322645490971 is an apocalyptic number.

322645490971 is a deficient number, since it is larger than the sum of its proper divisors (159019029).

322645490971 is a wasteful number, since it uses less digits than its factorization.

322645490971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159019028.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 322645490971 in words is "three hundred twenty-two billion, six hundred forty-five million, four hundred ninety thousand, nine hundred seventy-one".