80863815682 has 8 divisors (see below), whose sum is σ = 130626163836. Its totient is φ = 37321761072.

The previous prime is 80863815653. The next prime is 80863815691. The reversal of 80863815682 is 28651836808.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 75470528961 + 5393286721 = 274719^2 + 73439^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1555073353 + ... + 1555073404.

Almost surely, 2^80863815682 is an apocalyptic number.

80863815682 is a deficient number, since it is larger than the sum of its proper divisors (49762348154).

80863815682 is a wasteful number, since it uses less digits than its factorization.

80863815682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3110146772.

The product of its (nonzero) digits is 4423680, while the sum is 55.

The spelling of 80863815682 in words is "eighty billion, eight hundred sixty-three million, eight hundred fifteen thousand, six hundred eighty-two".