82645421184906 has 16 divisors (see below), whose sum is σ = 175013833097664. Its totient is φ = 25927975273664.

The previous prime is 82645421184883. The next prime is 82645421184913. The reversal of 82645421184906 is 60948112454628.

It is a self number, because there is not a number n which added to its sum of digits gives 82645421184906.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 405124613550 + ... + 405124613753.

It is an arithmetic number, because the mean of its divisors is an integer number (10938364568604).

Almost surely, 2^{82645421184906} is an apocalyptic number.

82645421184906 is an abundant number, since it is smaller than the sum of its proper divisors (92368411912758).

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

82645421184906 is a wasteful number, since it uses less digits than its factorization.

82645421184906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810249227325.

The product of its (nonzero) digits is 26542080, while the sum is 60.

The spelling of 82645421184906 in words is "eighty-two trillion, six hundred forty-five billion, four hundred twenty-one million, one hundred eighty-four thousand, nine hundred six".