82386921892 has 36 divisors (see below), whose sum is σ = 158501770588. Its totient is φ = 37442433600.

The previous prime is 82386921811. The next prime is 82386921919. The reversal of 82386921892 is 29812968328.

It can be written as a sum of positive squares in 2 ways, for example, as 26589868096 + 55797053796 = 163064^2 + 236214^2 .

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 in 11 ways as a sum of consecutive naturals, for example, 4294642 + ... + 4313782.

Almost surely, 2^82386921892 is an apocalyptic number.

It is an amenable number.

82386921892 is a deficient number, since it is larger than the sum of its proper divisors (76114848696).

82386921892 is a wasteful number, since it uses less digits than its factorization.

82386921892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28060 (or 28047 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 58.

The spelling of 82386921892 in words is "eighty-two billion, three hundred eighty-six million, nine hundred twenty-one thousand, eight hundred ninety-two".