71730326322 has 18 divisors (see below), whose sum is σ = 155418169023. Its totient is φ = 23909730012.

The previous prime is 71730326287. The next prime is 71730326323. The reversal of 71730326322 is 22362303717.

71730326322 is a `hidden beast` number, since 7 + 1 + 7 + 3 + 0 + 326 + 322 = 666.

It can be written as a sum of positive squares in only one way, i.e., 35865163161 + 35865163161 = 189381^2 + 189381^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=189381.

It is not an unprimeable number, because it can be changed into a prime (71730326323) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1104723 + ... + 1167849.

Almost surely, 2^71730326322 is an apocalyptic number.

71730326322 is an abundant number, since it is smaller than the sum of its proper divisors (83687842701).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71730326322 is an frugal number, since it uses more digits than its factorization.

71730326322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126262 (or 63132 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 36.

The spelling of 71730326322 in words is "seventy-one billion, seven hundred thirty million, three hundred twenty-six thousand, three hundred twenty-two".