82981946020 has 24 divisors (see below), whose sum is σ = 176467939200. Its totient is φ = 32772616032.

The previous prime is 82981946009. The next prime is 82981946029. The reversal of 82981946020 is 2064918928.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (82981946029) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 26258530 + ... + 26261689.

It is an arithmetic number, because the mean of its divisors is an integer number (7352830800).

Almost surely, 2^82981946020 is an apocalyptic number.

It is an amenable number.

82981946020 is an abundant number, since it is smaller than the sum of its proper divisors (93485993180).

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

82981946020 is a wasteful number, since it uses less digits than its factorization.

82981946020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52520307 (or 52520305 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 49.

The spelling of 82981946020 in words is "eighty-two billion, nine hundred eighty-one million, nine hundred forty-six thousand, twenty".