82581842132 has 6 divisors (see below), whose sum is σ = 144518223738. Its totient is φ = 41290921064.

The previous prime is 82581842113. The next prime is 82581842143. The reversal of 82581842132 is 23124818528.

It can be written as a sum of positive squares in only one way, i.e., 82463162896 + 118679236 = 287164^2 + 10894^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10322730263 + ... + 10322730270.

It is an arithmetic number, because the mean of its divisors is an integer number (24086370623).

Almost surely, 2^82581842132 is an apocalyptic number.

It is an amenable number.

82581842132 is a deficient number, since it is larger than the sum of its proper divisors (61936381606).

82581842132 is a wasteful number, since it uses less digits than its factorization.

82581842132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20645460537 (or 20645460535 counting only the distinct ones).

The product of its digits is 245760, while the sum is 44.

The spelling of 82581842132 in words is "eighty-two billion, five hundred eighty-one million, eight hundred forty-two thousand, one hundred thirty-two".