82849981924 has 6 divisors (see below), whose sum is σ = 144987468374. Its totient is φ = 41424990960.

The previous prime is 82849981913. The next prime is 82849981939. The reversal of 82849981924 is 42918994828.

It can be written as a sum of positive squares in only one way, i.e., 82846108900 + 3873024 = 287830^2 + 1968^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10356247737 + ... + 10356247744.

Almost surely, 2^82849981924 is an apocalyptic number.

It is an amenable number.

82849981924 is a deficient number, since it is larger than the sum of its proper divisors (62137486450).

82849981924 is a wasteful number, since it uses less digits than its factorization.

82849981924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20712495485 (or 20712495483 counting only the distinct ones).

The product of its digits is 23887872, while the sum is 64.

The spelling of 82849981924 in words is "eighty-two billion, eight hundred forty-nine million, nine hundred eighty-one thousand, nine hundred twenty-four".