82687827880 has 32 divisors (see below), whose sum is σ = 212625843840. Its totient is φ = 28350112320.

The previous prime is 82687827869. The next prime is 82687828019. The reversal of 82687827880 is 8872878628.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147656556 + ... + 147657115.

It is an arithmetic number, because the mean of its divisors is an integer number (6644557620).

Almost surely, 2^82687827880 is an apocalyptic number.

It is an amenable number.

82687827880 is an abundant number, since it is smaller than the sum of its proper divisors (129938015960).

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

82687827880 is a wasteful number, since it uses less digits than its factorization.

82687827880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295313689 (or 295313685 counting only the distinct ones).

The product of its (nonzero) digits is 38535168, while the sum is 64.

The spelling of 82687827880 in words is "eighty-two billion, six hundred eighty-seven million, eight hundred twenty-seven thousand, eight hundred eighty".