82871606436 has 12 divisors (see below), whose sum is σ = 193367081712. Its totient is φ = 27623868808.

The previous prime is 82871606393. The next prime is 82871606533. The reversal of 82871606436 is 63460617828.

It is a tau number, because it is divible by the number of its divisors (12).

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, 3452983590 + ... + 3452983613.

It is an arithmetic number, because the mean of its divisors is an integer number (16113923476).

Almost surely, 2^82871606436 is an apocalyptic number.

It is an amenable number.

82871606436 is an abundant number, since it is smaller than the sum of its proper divisors (110495475276).

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

82871606436 is a wasteful number, since it uses less digits than its factorization.

82871606436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6905967210 (or 6905967208 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 82871606436 in words is "eighty-two billion, eight hundred seventy-one million, six hundred six thousand, four hundred thirty-six".