82154228012 has 12 divisors (see below), whose sum is σ = 143837002176. Its totient is φ = 41057941680.

The previous prime is 82154227993. The next prime is 82154228089. The reversal of 82154228012 is 21082245128.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4783439 + ... + 4800582.

It is an arithmetic number, because the mean of its divisors is an integer number (11986416848).

Almost surely, 2^82154228012 is an apocalyptic number.

It is an amenable number.

82154228012 is a deficient number, since it is larger than the sum of its proper divisors (61682774164).

82154228012 is a wasteful number, since it uses less digits than its factorization.

82154228012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9586168 (or 9586166 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 35.

The spelling of 82154228012 in words is "eighty-two billion, one hundred fifty-four million, two hundred twenty-eight thousand, twelve".