82684892240 has 20 divisors (see below), whose sum is σ = 192242374644. Its totient is φ = 33073956864.

The previous prime is 82684892177. The next prime is 82684892263. The reversal of 82684892240 is 4229848628.

It can be written as a sum of positive squares in 2 ways, for example, as 25150153744 + 57534738496 = 158588^2 + 239864^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

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, 516780497 + ... + 516780656.

Almost surely, 2^82684892240 is an apocalyptic number.

82684892240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

82684892240 is an abundant number, since it is smaller than the sum of its proper divisors (109557482404).

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

82684892240 is a wasteful number, since it uses less digits than its factorization.

82684892240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033561166 (or 1033561160 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 53.

The spelling of 82684892240 in words is "eighty-two billion, six hundred eighty-four million, eight hundred ninety-two thousand, two hundred forty".