82844487808 has 16 divisors (see below), whose sum is σ = 165041753310. Its totient is φ = 41422243840.

The previous prime is 82844487793. The next prime is 82844487821. The reversal of 82844487808 is 80878444828.

It can be written as a sum of positive squares in only one way, i.e., 73033981504 + 9810506304 = 270248^2 + 99048^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323611153 + ... + 323611408.

Almost surely, 2^82844487808 is an apocalyptic number.

It is an amenable number.

82844487808 is a deficient number, since it is larger than the sum of its proper divisors (82197265502).

82844487808 is an equidigital number, since it uses as much as digits as its factorization.

82844487808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647222575 (or 647222563 counting only the distinct ones).

The product of its (nonzero) digits is 29360128, while the sum is 61.

The spelling of 82844487808 in words is "eighty-two billion, eight hundred forty-four million, four hundred eighty-seven thousand, eight hundred eight".