32945630181 has 4 divisors (see below), whose sum is σ = 43927506912. Its totient is φ = 21963753452.

The previous prime is 32945630173. The next prime is 32945630183. The reversal of 32945630181 is 18103654923.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 32945630181 - 2³ = 32945630173 is a prime.

It is a super-2 number, since 2×32945630181² (a number of 22 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32945630183) 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, 5490938361 + ... + 5490938366.

It is an arithmetic number, because the mean of its divisors is an integer number (10981876728).

Almost surely, 2^32945630181 is an apocalyptic number.

It is an amenable number.

32945630181 is a deficient number, since it is larger than the sum of its proper divisors (10981876731).

32945630181 is a wasteful number, since it uses less digits than its factorization.

32945630181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10981876730.

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 32945630181 in words is "thirty-two billion, nine hundred forty-five million, six hundred thirty thousand, one hundred eighty-one".