8461945332 has 36 divisors (see below), whose sum is σ = 21396675300. Its totient is φ = 2819757312.

The previous prime is 8461945309. The next prime is 8461945339. The reversal of 8461945332 is 2335491648.

It can be written as a sum of positive squares in 2 ways, for example, as 7145997156 + 1315948176 = 84534^2 + 36276^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8461945339) 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 in 11 ways as a sum of consecutive naturals, for example, 83794 + ... + 154742.

Almost surely, 2^8461945332 is an apocalyptic number.

It is an amenable number.

8461945332 is an abundant number, since it is smaller than the sum of its proper divisors (12934729968).

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

8461945332 is a wasteful number, since it uses less digits than its factorization.

8461945332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74272 (or 74267 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 8461945332 is about 91988.8326483166. The cubic root of 8461945332 is about 2037.7773861098. Note that the first 3 decimals are identical.

The spelling of 8461945332 in words is "eight billion, four hundred sixty-one million, nine hundred forty-five thousand, three hundred thirty-two".