80827907685 has 64 divisors (see below), whose sum is σ = 158698082304. Its totient is φ = 34286515200.

The previous prime is 80827907659. The next prime is 80827907701. The reversal of 80827907685 is 58670972808.

It is not a de Polignac number, because 80827907685 - 2¹¹ = 80827905637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 192151 + ... + 445620.

It is an arithmetic number, because the mean of its divisors is an integer number (2479657536).

Almost surely, 2^80827907685 is an apocalyptic number.

80827907685 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

80827907685 is a deficient number, since it is larger than the sum of its proper divisors (77870174619).

80827907685 is a wasteful number, since it uses less digits than its factorization.

80827907685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637874.

The product of its (nonzero) digits is 13547520, while the sum is 60.

The spelling of 80827907685 in words is "eighty billion, eight hundred twenty-seven million, nine hundred seven thousand, six hundred eighty-five".