867272875864866 has 24 divisors (see below), whose sum is σ = 1879472153842140. Its totient is φ = 289032355113696.

The previous prime is 867272875864831. The next prime is 867272875864877. The reversal of 867272875864866 is 668468578272768.

867272875864866 is a `hidden beast` number, since 8 + 6 + 7 + 2 + 72 + 8 + 7 + 58 + 6 + 486 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 836235397530225 + 31037478334641 = 28917735^2 + 5571129^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4883534401 + ... + 4883711988.

Almost surely, 2^{867272875864866} is an apocalyptic number.

867272875864866 is an abundant number, since it is smaller than the sum of its proper divisors (1012199277977274).

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

867272875864866 is a wasteful number, since it uses less digits than its factorization.

867272875864866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9767251330 (or 9767251327 counting only the distinct ones).

The product of its digits is 145662935040, while the sum is 90.

The spelling of 867272875864866 in words is "eight hundred sixty-seven trillion, two hundred seventy-two billion, eight hundred seventy-five million, eight hundred sixty-four thousand, eight hundred sixty-six".