82954191820 has 12 divisors (see below), whose sum is σ = 174203802864. Its totient is φ = 33181676720.

The previous prime is 82954191787. The next prime is 82954191911. The reversal of 82954191820 is 2819145928.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2073854776 + ... + 2073854815.

It is an arithmetic number, because the mean of its divisors is an integer number (14516983572).

Almost surely, 2^82954191820 is an apocalyptic number.

It is an amenable number.

82954191820 is an abundant number, since it is smaller than the sum of its proper divisors (91249611044).

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

82954191820 is a wasteful number, since it uses less digits than its factorization.

82954191820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4147709600 (or 4147709598 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 49.

The spelling of 82954191820 in words is "eighty-two billion, nine hundred fifty-four million, one hundred ninety-one thousand, eight hundred twenty".