80856648721827 has 32 divisors (see below), whose sum is σ = 130900031458560. Its totient is φ = 48920547260160.

The previous prime is 80856648721817. The next prime is 80856648721847. The reversal of 80856648721827 is 72812784665808.

80856648721827 is a `hidden beast` number, since 8 + 0 + 8 + 5 + 66 + 487 + 2 + 1 + 82 + 7 = 666.

It is not a de Polignac number, because 80856648721827 - 2¹¹ = 80856648719779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80856648721817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 231720558 + ... + 232069235.

It is an arithmetic number, because the mean of its divisors is an integer number (4090625983080).

Almost surely, 2^{80856648721827} is an apocalyptic number.

80856648721827 is a deficient number, since it is larger than the sum of its proper divisors (50043382736733).

80856648721827 is a wasteful number, since it uses less digits than its factorization.

80856648721827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463790400 (or 463790394 counting only the distinct ones).

The product of its (nonzero) digits is 578027520, while the sum is 72.

The spelling of 80856648721827 in words is "eighty trillion, eight hundred fifty-six billion, six hundred forty-eight million, seven hundred twenty-one thousand, eight hundred twenty-seven".