82616820418 has 32 divisors (see below), whose sum is σ = 137761108992. Its totient is φ = 36844617600.

The previous prime is 82616820401. The next prime is 82616820437. The reversal of 82616820418 is 81402861628.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172080 + ... + 441412.

It is an arithmetic number, because the mean of its divisors is an integer number (4305034656).

Almost surely, 2^82616820418 is an apocalyptic number.

82616820418 is a deficient number, since it is larger than the sum of its proper divisors (55144288574).

82616820418 is a wasteful number, since it uses less digits than its factorization.

82616820418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269610.

The product of its (nonzero) digits is 294912, while the sum is 46.

The spelling of 82616820418 in words is "eighty-two billion, six hundred sixteen million, eight hundred twenty thousand, four hundred eighteen".